Question

Resolva as equações. a) 2x + 4 = 12 b) 6x - 10 = 2x + 30

Answer 1

a) $2x+4=12$

$2x=12-4$

$2x=8$

$x=\frac{8}{2}$

$x=4$

b) $6x-10=2x+30$

$6x-2x=30+10$

$4x=40$

$x=\frac{40}{4}$

$x=10$