Resposta :
x - 4(3x - 6) + 8 = x
x -12x +24 + 8 = x
24 + 8 = x - x + 12
32 = 12 x
x + 32 / 12 = 8 / 3
x = 8 / 3
equaçao do primeiro grau x-4(3x-6)+8=x ?? por favor
x - 4(3x - 6) + 8 = x
x -12x +24 + 8 = x
24 + 8 = x - x + 12
32 = 12 x
x + 32 / 12 = 8 / 3
x = 8 / 3