Question

calcule o valor de x em cada figura

Answer 1

a)

2x+50=180

2x=180-50

2x=130

x=65

b)

x+60=180

x=180-60

x=120

c)

x+10+x-20=180

2x+30=180

2x=180-30

2x=150

x=75

d)

x/2+30=180

x/2=180-30

x/2=150

x=75