12x + 31 = 2x + 17
10x = -14
x = - 1.4
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(2x + 3)(2x + 3)
30+12x = 6(5+2x)
2x+5=-91-10x 12x+5=-91 12x=-96 x=-8
2x + (10x - 4) = 20 2x + 10x - 4 = 20 12x - 4 = 20 12x = 24 x = 2
-2x-6= -2x-6Another answer:-2x-6 = 2x+6-2x-2x = 6+6-4x = 12x = -3