How to solve this equation by elimination?

2x+5y=4 and 7x+y=-19

Multiply 7x+y=-19 by 5 to have the same value of y. Then subtract one from the other.

35x+5y=-95

-

2x+5y=4.

You get a result of 33x=-99

X=-3

Substitute the x into one of the original equations.

2*-3 + 5y = 4

5y=4+6

Y=2