{"id":186,"date":"2020-01-18T09:42:36","date_gmt":"2020-01-18T09:42:36","guid":{"rendered":"https:\/\/henriksenmatematik.wordpress.com\/?p=186"},"modified":"2026-04-09T22:31:45","modified_gmt":"2026-04-09T20:31:45","slug":"to-ligninger-med-to-ubekendte","status":"publish","type":"post","link":"https:\/\/mxth.dk\/?p=186","title":{"rendered":"To Ligninger med To Ubekendte"},"content":{"rendered":"\n<p class=\" eplus-mipxPr eplus-wrapper\">Der er flere m\u00e5der at l\u00f8se et ligningssystem som best\u00e5r af to ligninger med to ubekendte. Vi vil her se p\u00e5 to af dem<\/p>\n\n\n<ul class=\" eplus-Hc59aD wp-block-list eplus-wrapper eplus-styles-uid-6d29dc\">\n<li class=\" eplus-wrapper\">substitutionsmetoden<\/li>\n\n\n\n<li class=\" eplus-wrapper\">lige store koefficienters metode<\/li>\n<\/ul>\n\n\n<p class=\" eplus-RkPFiv eplus-wrapper\">Hvilken metode man bruger er underordnet n\u00e5r man skal l\u00f8se en ligning. Der kan dog v\u00e6re situationer, hvor den ene er lettere at benytte end den anden. Men de vil begge give det samme resultat.<\/p>\n\n\n\n<p class=\" eplus-0izZor eplus-wrapper\">Lad os se p\u00e5 de to metoder og vi starter med substitutionsmetoden ogs\u00e5 kaldet <em>erstatningsmetoden<\/em>.<\/p>\n\n\n\n<figure class=\"eplus-0Qh7pe wp-embed-aspect-16-9 wp-has-aspect-ratio wp-block-embed alignfull is-type-video is-provider-youtube wp-block-embed-youtube eplus-wrapper\"><div class=\"wp-block-embed__wrapper\">\n<span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/ClmDcaQlrpU?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=da-DK&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span>\n<\/div><\/figure>\n\n\n\n<p class=\" eplus-9PN6d4 eplus-wrapper\">Denne metode er den klassiske som I nok har set f\u00f8r. Nu ser vi p\u00e5 en anden metode, hvor vi g\u00f8r koefficienterne for den ene variabel lige store.<\/p>\n\n\n\n<figure class=\"wp-embed-aspect-16-9 wp-has-aspect-ratio wp-block-embed alignfull is-type-video is-provider-youtube wp-block-embed-youtube eplus-wrapper\"><div class=\"wp-block-embed__wrapper\">\n<span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/okJwW1SkNzU?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=da-DK&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Der er flere m\u00e5der at l\u00f8se et ligningssystem som best\u00e5r af to ligninger med to ubekendte. Vi vil her se p\u00e5 to af dem Hvilken metode man bruger er underordnet n\u00e5r man skal l\u00f8se en ligning. Der kan dog v\u00e6re situationer, hvor den ene er lettere at benytte end den anden. Men de vil begge [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ub_ctt_via":"","editor_plus_copied_stylings":"{}","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[14,3],"tags":[67,74],"class_list":["post-186","post","type-post","status-publish","format-standard","hentry","category-ligninger","category-matematik","tag-hhx","tag-htx"],"featured_image_src":null,"author_info":{"display_name":"Henriksen","author_link":"https:\/\/mxth.dk\/?author=1"},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/posts\/186","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=186"}],"version-history":[{"count":5,"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/posts\/186\/revisions"}],"predecessor-version":[{"id":4304,"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/posts\/186\/revisions\/4304"}],"wp:attachment":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=186"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}