Question

resolva as resoluções?​

Answer 1

Explicação passo-a-passo:

a) 20x-60=5x

20x-5×=+60

15×=+60

×=60/15

×=4

b) 2x+4×=42

6×=42

×=42/6

×=7

c) 8x+3=-5

8×=-5-3

×=-8/8

×=1

d) 2x=60-4×

2x+4×=-60

6×=-60

×=-60/6

×=10

Espero ter ajudado