4×+2(11-×)=42怎么算?

4×+2(11-×)=42怎么算?
2025-12-25 03:37:37
推荐回答(2个)
回答1:

4X+2(11-X)=42
解:4X+22-2X=42
2X+22=42
2X=42-22
2X=20
X=20÷2
X=10

回答2:

4x+2*11-2x=42
4x+22-2x=42
4x-2x=42-22
2x=20
x=10