Verified answer

Answer:

-y=49-7

-y=42

multiply both side we get y

y=-42

Step-by-step explanation:

by putting the value of y we can find x

6x+2×-42=0

6x-84=0

6x=84

x=84/6=14

so

6x+2y=6×14+2×-42

=84-84

=0 answer