Question

ME AJUDEM POR FAVOR

Answer 1

Resposta:

a) 8

3.(2x +7)=69

6x+21=69

6x=69-21

x=48/6=8

b)5

30+6x=60

6x=60-30

x=30/6=5

c) 2

3x-13=-6x+8-3

3x+6x=5+13

9x=18

x=18/9=2

d)3

2.(x-8)=22

2x-16=22

x=6/2=3

e)10

5x+28=78

5x=78-28

x=50/5=10