x-25=75解方程 x十25%=8,75解方程!
25-75%x=10\u89e3\u65b9\u7a0b0.75x=25-10
0.75x=15
x=15\u00f70.75
x=20
x+0.25=8.75
x=8.75-0.25
x=8.5
\u8bf7\u91c7\u7eb3
图
x-25=75
解:x-25+25=75+25
x=100
x-25=75
x=75+25
x=100
75-25=x,所以 X=50
x-25=75
x=25+75
x=100
绛旓細鍥
绛旓細x-25=75 瑙:x-25+25=75+25 x=100
绛旓細瑙o細2x-25锛75 2x锛50 x锛25
绛旓細2x-25=75 2x=75+25 2x=100 x=100梅2 x=50 妫楠 鏂圭▼宸﹁竟 2x-2.5脳10 =2脳50-2.5脳10 =100-25 =75 =鏂圭▼鍙宠竟 鎵浠=50鏄柟绋2x-2.5脳10=75鐨勮В
绛旓細75-x=25鏂圭▼鎬庝箞瑙 瑙:75-x=25 X=75-25 X=50
绛旓細x=75-25 =50
绛旓細25x=75 x=3 妫楠岋細宸﹁竟=25脳3=75 鍙宠竟=75 宸﹁竟=鍙宠竟
绛旓細绛夊紡涓よ竟鍚屾椂闄や互25寰楀埌x=3
绛旓細瑙o細x=25+60 x=85 鎶25绉诲埌鍙宠竟鍘汇25鍓嶉潰鏄-鈥濓紝鍒颁簡鍙抽潰灏辨槸鈥+鈥濓紝鎵浠25+60=85灏辨槸姝鏂圭▼鐨勮В銆--- 绁濇偍瀛︿範杩涙锛侀噰绾虫槸鎴戝墠杩涚殑鍔ㄥ姏~濡傛灉鎮ㄨ寰楁弧鎰忥紝鍙互鐐瑰嚮鈥滈噰绾充负婊℃剰绛旀鈥 鍝︼紒
绛旓細X-25%X锛75 0.75x=75 x=100 45%x-45锛18 0.45x=63 x=140 30%X+15锛90 0.3x=75 x=250 120%X锛90 1.2x=90 x= 75 15%x锛4.5 x=30 鍚屽浣犲ソ锛屽鏋滈棶棰樺凡瑙e喅锛岃寰楀彸涓婅閲囩撼鍝~~鎮ㄧ殑閲囩撼鏄鎴戠殑鑲畾~璋㈣阿鍝