2/5x-8=20-3/4x 求x等于2/5x-8=20-3/4x求x等于

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2/5x-8=20-3/4x求x等于2/5x-8=20-3/4x求x等于2/5x-8=20-3/4x求x等于2/5x-8=20-3/4x求x等于2/5x-8=20-3/4x求x等于2/5x-8=20-

2/5x-8=20-3/4x 求x等于2/5x-8=20-3/4x求x等于
2/5x-8=20-3/4x 求x等于
2/5x-8=20-3/4x
求x等于

2/5x-8=20-3/4x 求x等于2/5x-8=20-3/4x求x等于
同乘以20x得到
8-160x=400x-15
23=560x
x=23/560
希望我的回答能够帮到你,如有问题继续追问.

自己想

x= 560/23

同时×20:=8x-160=400-15x
23x=560
x=23分之560

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