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

3( x+1 ) = 96 - 42 = 54

x + 1 = 54 : 3

x + 1 = 18

x = 18 - 1 = 17

Vậy...

Answer 3

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