x/(60+70)+1=x/(50+70)怎么解

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x/(60+70)+1=x/(50+70)怎么解x/(60+70)+1=x/(50+70)怎么解x/(60+70)+1=x/(50+70)怎么解解方程如下:x/(60+70)+1=x/(50+70)x

x/(60+70)+1=x/(50+70)怎么解
x/(60+70)+1=x/(50+70)怎么解

x/(60+70)+1=x/(50+70)怎么解
解方程如下:
x/(60+70)+1=x/(50+70)
x/(50+70) -x/(60+70)=1
(60+70-50-70)x=120×130
10x=120×130
x=12×130
x=1560

方程两遍同乘以(60+70)*(50+70)
(50+70)X+15600=(60+70)X
去括号 合并同类项
10X=15600
解得
X=1560

x/(60+70)+1=x/(50+70)
x/(50+70) -x/(60+70)=1
(50+70-60-70)=x
x=-10