Question

1)-5x+3-2x+1=0
2)4x-1-3x=2x+7x
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Answer 1

Resposta:

1) x = 4/7

2) x = -1/8

Explicação passo a passo:

1) -5x + 3 -2x + 1 = 0 => -7x + 4 =0 => 4 = 7x => x = 4/7

2) 4x - 1 -3x  = 2x+7x => x -1 = 9x => -1 = 9x -x => -1 = 8x => x = -1/8

Answer 2

Resposta:

1) 4/7 ou 0,57

2) -1/8 ou -0,125

Explicação passo a passo:

1) $-5x+3-2x+1=0$

$-5x+3-2x+1=0\\-5x-2x=-1-3\\-7x=-4\\x=\frac{-4}{-7}\\x=\frac{4}{7}\\x=0,57$

2) $4x-1-3x=2x+7x$

$4x-1-3x=2x+7x\\-1=2x+7x+3x-4x\\-1=8x\\-8x=1\\x=-\frac{1}{8} \\x=-0,125$