Question

2(x-2)+5(2-x)+(x+1)=0
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Answer 1

Explicação passo-a-passo:

.

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

$2x - 4 + 10 - 5x + x + 1 = 0$

$2x - 5x + x - 4 + 10 + 1 = 0$

$- 3x + x + 6 + 1 = 0$

$- 2x + 7 = 0$

$- 2x = 0 - 7$

$- 2x = - 7( - 1)$

$2x = 7$

$x = \dfrac{7}{2}$