Answer
$x=12$
Work Step by Step
$3(x+2)=x+30$
$3x+6=x+30$
$3x-x+6=30$
$2x+6=30$
$2x=30-6$
$2x=24$
$x=\frac{24}{2}$
$x=12$
Check the answer.
3(12+2)=(12)+30
3(14)=42
42=42
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