Question

× + 5y = 1 3× - y = -13​

Answer 1

Resposta:

x+5y=1 (-3)

3x-y=-13

-3x-15y=-3

3x-y=-13

16y=-16

y=-16/16

y=1

x+5y=1

x+5.1=1

x+5=1

x=1-5

x=-4