Question

calcule o valor de cada ângulo ×+40+3×-20=180

Answer 1

x+40+3x-20=180
4x=180-20
4x=160
x=160/4
x=40

Angulo 1= 40+40=80
Angulo 2=3*40-20=100
Prova real= 80+100=180

Answer 2

oi!

x + 40 + 3x - 20 = 180

x + 3x = 180 - 40 + 20

  

      4x = 160

 

      x = 160/4

 

     x = 40