Question

4+2(x+5)=x-20 ajudem pfv ?

Answer 1

$4 + 2x + 10 = x - 20$
$2x - x = - 20 - 10 - 4$
$x = - 34$

Answer 2

4 + 2(x + 5) = x - 20
⇔ 4 + 2x + 10 = x - 20
⇔ 2x - x = - 20 - 4 - 10
⇔ x = - 34