Question

Preciso de ajuda urgente:
1) resolva:
a)2x+4=0
B)3x+8x=22

Answer 1

$2x + 4 =0 \\ 2x = - 4 \\ x = - 2$
$3x +8x = 22 \\ 11x = 22 \\ x = 2$

Answer 2

2x+4=0
2x=-4
x=-4/-2
x=2

3x+8x=22
11x=22
x=22/-11
x=-2
x=-2.(-1)
x=2