Question

observe a figura e determine o valor de x​

Answer 1

Cálculo:

4x + 20 = 2x + 60

4x - 2x = 60 - 20

2x = 40

x = 40 / 2

x = 20

Prova real:

4x + 20 =

4 . 20 + 20 =

80 + 20 =

100

2x + 60 =

2 . 20 + 60 =

40 + 60 =

100

Resposta: X = 20