Verified answer

Ola Vitor

4x + 8 = 13 + 5y

4x - 5y = 5

3x - y - 2 = x + y + 2

2x - 2y = 4

x - y = 2

x = y + 2

4x - 5y = 5

4y + 8 - 5y = 5

y = 8 - 5 = 3

x = y + 2 = 3 + 2 = 5

pronto