Question

Tìm x biết :88-3(7+ x)bằng 64

Answer 1

\(88-3\left(7+x\right)=64\)

\(\Rightarrow-3\left(7+x\right)=64-88\)

\(\Rightarrow7+x=\frac{-24}{-3}=8\)

\(\Rightarrow x=8-7=1\)

Answer 2

Tìm x biết :88-3(7+ x)bằng 64

bai giai:

3(7+x)=88-64

3(7+x)=24

7+x=24:3

7+x=8

x=8-7

x=1