Question

EXERCICIOS.
1) Encontre o valor de x:
preciso de ajuda galerinha :)​

Answer 1

a)

x+40+100=180

x=180-100-40

x=80-40

x=40

b)

x+80+45=180

x=180-80-45

x=100-45

x=55

c)

3x+2x+x=180

6x=180

x=180:6

x=30

d)

x+2x+x+20=180

4x=180-20

4x=160

x=160:4

x=40

e)

x+30+42=180

x=180-30-42

x=150-42

x=108

espero ter ajudado!!!!