Question

Система4x+y=-10;5x-2y=-19

Answer 1

4x+y=-10;
5x-2y=-19

1) 4x+y=-10
y=-10-4x

2)5x-2(-10-4x)=-19
5x+20+8x=-19
13x=-39
x=-3

3)y=-10-4*(-3)=-10+12=2