Question

15x - y = 34
13x – 4y= 0​

Answer 1

Resposta:

y=986 x = 68

Explicação passo-a-passo:

1: 15x - y = 34      isolar y    --> y = -34 + 15x  

2: 13x – 4y= 0​

13x -4(-34+15x) = 0

-2x -136 = 0

x = 136/2

x = 68

--> y = -34 + 15*68

y=986 x = 68