Answer:
x=30
Explanation:
1/2(x + 6) = 18
Distribute
1/2 x + 1/2 *6 = 18
1/2 x +3 = 18
Subtract 3 from each side
1/2 x +3-3 = 18-3
1/2 x = 15
Multiply each side by 2
2*1/2x = 15*2
x = 30
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