56
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7.125
5x - 8 = 7 Add 8 to both sides 5x = 15 Divide both sides by 5 x = 3
7x + 8 = 84 Subtract 8 from bith sides: 7x = 76 Divide both sides by 7: x = 76/7 = 10.8571428...
Subtract 7 from each side of the equation: 2x = 8 Divide by 2: x = 4
6333