Question

The ordered pair (1, -5) is a solution for the system x + 2y = -9 and x - y = 6.
True
False

Answer 1

(1,-5) should satisfy both the equations
x=1 y=-5 putting in first x+2y=-9
1-10=-9
-9=-9 satisfying first
putting in second x-y=-6
1-(-5)=6
6=6
so true