Answer:
x = 16
Explanation:
(8x + 12)° = 140°
8x + 12 = 140
8x = 128
x = 128 ÷ 8
DISREGARD 16.5 MY BAD the answer is 16
140 = 8x+12
Subtract 12 on both sides
128 = 8x
Divide by 8
16 = x
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