2X+3(8-X)=10怎么做还有这个,4X-2X(12-X)=24

问题描述:

2X+3(8-X)=10怎么做
还有这个,4X-2X(12-X)=24

2X+3(8-X)=10
2X+24-3X=10
-X=10-24
X=14

2X+3(8-X)=10
2X+24-3X=10
-X+24=10
-X=-14
X=14

2x + 3(8 - x) = 10
2x + 24 - 3x = 10
3x - 2x = 24 - 10
x = 14
4x - 2(12 - x) = 24
4x - 24 + 2x = 24
4x + 2x = 24 + 24
6x = 48
x = 48 ÷ 6
x = 8

2X+24-3X=10
移项得3X-2X=24-10
得到X=14