4(x+2) = -x/2
2*4(x+2) = -x
8x + 8*2 = -x
8x + x = -16
9x = -16
x = -16/9 ou 1,7777777777777...
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4(x+2) = -x/2
2*4(x+2) = -x
8x + 8*2 = -x
8x + x = -16
9x = -16
x = -16/9 ou 1,7777777777777...
2*4(x+2)-2x
8x+x=-16
9x=-16
x=-16/9