\(32-2\left(x+1\right)=42\)
\(\Rightarrow32-2x-1=42\)
\(\Rightarrow31-2x=42\)
\(\Rightarrow2x=31-42\)
\(\Rightarrow2x=-11\)
\(\Rightarrow x=\frac{-11}{2}\)
\(\Rightarrow x=-5,5\)
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
\(32-2\left(x+1\right)=42\)
\(\Leftrightarrow2\left(x+1\right)=32-42\)
\(\Leftrightarrow2\left(x+1\right)=-10\)
\(\Leftrightarrow x+1=-10\div2\)
\(\Leftrightarrow x+1=-5\)
\(\Leftrightarrow x=-5-1\)
\(\Leftrightarrow x=-6\)
Vậy 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
Vay x=36
\(32-2\cdot\left(x+1\right)=42\)
\(=>2\left(x+1\right)=32-42\)
\(=>2x+1=-10\)
\(=>2x=-10-1\)
\(=>2\cdot x=-11\)
\(=>x=-11\div2\)
\(=>x=-5,5\)
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)
VẬY X = (-6)
