Question

d)2(x+1) - (x-1) = 0
e) (4x+6)-2x = (x-6) + 10 + 14
f) 3(x-1) - (x-3) +5(x-2) = 18

me ajude por favor ​

Answer 1

Resposta:

Aplique a propriedade distributiva:

$\sf \: 2(x + 1) - ( x - 1) = 0$

$\sf \: 2x + 2 - (x - 1) = 0$

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$\sf \: 2x + 2 - (x - 1) = 0$

$\sf \: 2x + 2 - x + 1 = 0$

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$\sf \: 2x + 2 - x + 1 = 0$

$\sf \:2x + 3 - x = 0$

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$\sf \:2x + 3 - x = 0$

$\sf \:1x + 3 = 0$

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$\sf \:1x + 3 = 0$

$\sf \:x + 3 = 0$

$\color{blue}{}\sf \:x = - 3$