6x-142+3(4-3x)-(2x+7)
6x-142+12-9x-2x-7=-5x-137
-5*(-1)-137=5-137= - 132
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6x-142+3(4-3x)-(2x+7)
6x-142+12-9x-2x-7=-5x-137
-5*(-1)-137=5-137= - 132