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(12*x)/7-2 = 2*x+12 // - 2*x+12
(12*x)/7-(2*x)-12-2 = 0
(12*x)/7-2*x-12-2 = 0
-2/7*x-14 = 0 // + 14
-2/7*x = 14 // : -2/7
x = 14/(-2/7)
x = -49
x = -49
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