32-2.(x+1)=42
2.(x+1)=32-42
2(x+1)=-10
x+1=(-10):2
x+1=-5
x=-5-1
x=-6
32-2.(x+1)=42
2.(x+1)=42+32
2.(x+1)=74
x+1=74:2
x+1=37
x=37-1
x=36
chúc bạn hok tốt
\(32-2.\left(x+1\right)=42\)
\(2.\left(x+1\right)=32-42=-10\)
\(x+1=-10:2=-5\)
\(x=-5-1=-6\)
\(32-2\left(x+1\right)=42\)
\(\Rightarrow2\left(x+1\right)=32-42=-10\)
\(\Rightarrow x+1=-10:2=-5\)
\(\Rightarrow x=-5-1=-6\)