Me ajudem 3 equações, 10 pontos... URGENTE?
3(x+5)/2 - 2(x-1)/6 = 4(x-1)/3 - 2(x+2)/3
x-1/4 = 3(x-1)/2 - 2(x+3)/3
2(x-2)/3 - 3(x-1)/2 = x+1/6 + x
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3(x+5)/2 - 2(x-1)/6 = 4(x-1)/3 - 2(x+2)/3
x-1/4 = 3(x-1)/2 - 2(x+3)/3
2(x-2)/3 - 3(x-1)/2 = x+1/6 + x
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3(x+5)/2 - 2(x-1)/6 = 4(x-1)/3 - 2(x+2)/3
mmc = 6
9*(x + 5)/6 - 2*(x - 1)/6 = 8*(x - 1)/6 - 4*(x + 2)/6
9x + 45 - 2x + 2 = 8x - 8 - 4x - 8
7x - 4x = -47 - 16
3x = -63
x = -21
x-1/4 = 3(x-1)/2 - 2(x+3)/3
(4x - 1)/4 = 6*(x - 1)/4 - 2*(x + 3)/3
3*(4x - 1)/12 = 18*(x - 1)/12 - 8*(x + 3)/12
12x - 3 = 18x - 18 - 8x - 24
18x - 8x - 12x = 42 - 3
2x = -39
x = -39/2
2(x-2)/3 - 3(x-1)/2 = x+1/6 + x
mmc = 6
4*(x - 2) - 9*(x - 1) = 12x + 1
4x - 8 - 9x + 9 = 12x + 1
12x + 5x = 0
x = 0
pronto
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