Question

У = х + 4
3х — 4у = - 19

Answer 1

x=3

y=7

Explanation:

3x-4(x+4)=-19

3x-4x-16=-19

-x-16=-19

+16. +16

________

-x=-3

×-1 ×-1

______

x=3

y=3+4

y=7