Question

96 - 3 ( x + 1 ) = 42

Answer 1

Giải:

\(96-3\left(x+1\right)=42\)

\(\Leftrightarrow3\left(x+1\right)=96-42\)

\(\Leftrightarrow3\left(x+1\right)=54\)

\(\Leftrightarrow x+1=\dfrac{54}{3}\)

\(\Leftrightarrow x+1=18\)

\(\Leftrightarrow x=18-1\)

\(\Leftrightarrow x=17\)

Vậy \(x=17\).

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Answer 2

96 - 3(x + 1) = 42

\(\Rightarrow\) 3x + 3 = 54

\(\Rightarrow\) 3x = 51

\(\Rightarrow\) x = 17