96 - 3 ( x + 1 ) = 42
3 ( x + 1 ) = 54
x + 1 = 18
x = 18 - 1
x = 17
\(96-3\left(x+1\right)=42\)
\(\Leftrightarrow3\left(x+1\right)=96-42\)
\(\Leftrightarrow3\left(x+1\right)=54\)
\(\Leftrightarrow x+1=54\div3\)
\(\Leftrightarrow x+1=18\)
\(\Leftrightarrow x=18-1\)
\(\Leftrightarrow x=17\)
Vậy x=17.
96 - 3 (x + 1) = 42
3 (x+1)=96-42
3 (x+1)=54
x+1=54:3
x+1=18
x=18-1
x=17
96 - 3 ( x + 1 ) = 42
3 ( x + 1 ) = 54
x + 1 = 18
x = 18 - 1
x = 17
Vậy x là : 17 .
minh moi bn vao link nay dang ky roi tra loi minigame nha : https://alfazi.edu.vn/question/5b7768199c9d707fe5722878
96-3[x+1]=42
3[x-1]=45
x+1=18
x=18-1
x=17
96−3(x+1)=42
⇔3(x+1)=96−42
⇔3(x+1)=54
⇔x+1=54÷3
⇔x+1=18
⇔x=18−1
⇔x=17
