Question

2x + 4x + 5x - Y - 3y

Answer 1

Resposta:

4x-y=3 (3)

2x+3y=19

12x-3y=9

2x+3y=19

14x=28

x=28/14

x=2

2x+3y=19

4+3y=19

3y=19-4

3y=15

y=15/3

y=5

Explicação passo-a-passo: