<h2>
Answer: x=6</h2>
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3(x+8)=42
(3)(x)+(3)(8)=42 (Distribute)
3x+24=42
Step 2: Subtract 24 from both sides.
3x+24−24 = 42−24
3x=18
Step 3: Divide both sides by 3.

Therefore, the correct answer is x=6
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