Question

4x + 30 + x + 20 = 180
qual o valor de x?
(equação completa)

Answer 1

4x+30+x+20=180

4x+x=180-30-20

5x=130

x=26

Answer 2

4x + 30 + x + 20 = 180
4x + x = 180 - 30 - 20
5x = 150 - 20
5x = 130
x = 130/5
x = 26