Question

Alguém sabe responder?

Answer 1

a)x=180-60

x=120

b)3x-54+3x+18=180

3x+3x=180+54-18

6x=234-18

6x=216

x=216/6

x=36

c)5x+x+36=180

6x=180-36

6x=144

x=144/6

x=24

d)x-10+2x+10=180

x-2x=180+10-10

-x=180(-1)

x=-180

e)3x+x=180

4x=180

x=180/4

x=45