Explicación paso a paso:
10x + 8 = -10 + 12x
10x -12x = -10 -8
-2x = -18
x = -18:-2
x = 9
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Explicación paso a paso:
10x + 8 = -10 + 12x
10x -12x = -10 -8
-2x = -18
x = -18:-2
x = 9