12-x=4的解和检验
x\u00f74=75\u7684\u89e3\u548c\u68c0\u9a8c
\u5148\u5316\u89e34x-4*12=x+12 \uff0c4x-48=x+12\uff0c\u79fb\u98793x=60\uff0cx=20
x=4+12
x=16
检验
16-12=4
绛旓細12-x=4 瑙o細x=12-4 x=8 妫楠岋細宸﹁竟=12-8 =4 =鍙宠竟
绛旓細12-x=4 x=12-4 x=8 妫楠岋細12-8=24
绛旓細12-X=4 X=12-4 X=8锛岄偅涔堣繖涓氳繃瑙f柟绋嬫槸鍙互寰楀埌绛旀鏄疿=8锛屾楠岀殑璇濓紝鍙互閫氳繃涓嬮潰鐨勮绠楄繘琛 12-8=4銆
绛旓細鍥炵瓟锛x=4+12 x=16 妫楠 16-12=4
绛旓細12-X=4 瑙o細X=l2-4 X=8 妫楠岋細l2-8=4
绛旓細瑙o細12-x=4 绉婚」锛屽緱锛-x=4-12 鍚堝苟鍚岀被椤癸紝寰楋細-x=-8 灏嗙郴鏁板寲涓1锛屽緱锛毭=8 妫楠 灏喢=8浠e叆鍘熸柟绋嬶紝寰:宸﹁竟 12-8=4 宸﹁竟=鍙宠竟 鎵浠ワ紝脳=1鏄師鏂圭▼鐨勮В銆備竴鍏冧竴娆℃柟绋嬬殑鍩烘湰瑙f硶 1. 绉婚」锛氭妸鏂圭▼涓惈鏈夋湭鐭ユ暟鐨勯」鍏ㄩ儴閮界Щ鍒版柟绋嬬殑鍙﹀涓杈,鍓╀綑鐨勫嚑椤瑰垯鍏ㄩ儴绉诲姩鍒版柟绋嬬殑鍙︿竴杈广...
绛旓細12-X=4 x=12-4 x=8 妫楠 12-8锛4
绛旓細浣犲ソ锛岃繖閬撻鏄竴鍏冧竴娆℃柟绋嬨傝В棰樿繃绋嬫槸:x=12-4=8锛岄獙绠:12-8=4鎴愮珛銆傛墍浠ユ柟绋鐨勮В鏄痻=8銆
绛旓細瑙f柟绋嬪紡璁$畻12-x=4 瑙i鎬濊矾:瑙f柟绋嬭繃绋嬮渶瑕佽繘琛屽悓绫婚」鍚堝苟,瀵规湭鐭ユ暟椤瑰拰甯告暟椤瑰垎鍒繘琛屽悎骞,鏈鍚庡皢鏈煡鏁伴」绯绘暟鍖栦负1 瑙i杩囩▼:12-x=4 x=12-4 x=8
绛旓細12锛峹锛4 瑙o細12锛峹锛媥锛4锛媥 12锛4锛媥 4锛媥锛12 4锛媥锛4锛12锛4 x锛8 4x锛6 瑙o細4x➗4锛6➗4 x锛1.5