(6-4)x=48+8、4x+2(11-x)=42这两个方程怎么解
问题描述:
(6-4)x=48+8、4x+2(11-x)=42这两个方程怎么解
答
6-4)x=48+8
2x=56
x=56/2
x=28
4x+2(11-x)=42
4x+22-2x=42
4x-2x=42-22
2x=20
x=10
答
(6-4)x=48+8
2x=56
x=56/2
x=28
4x+2(11-x)=42
4x+22-2x=42
4x-2x=42-22
2x=20
x=10