Question

which ordered pair is the solution to this equation?
-2x+9y=-26
a.(-4,-4)
b.(4,4)
c.(-4,-5)
d.(-5,-4)

Answer 1

plug in x and y of each and see if you get -26

Answer 2

wait can you explain it more

Answer 3

for example
choice a is the ordered pair (x=-4,y=-4)
-2(-4)+9(-4)=8-36=-28 which is not -26
so choice a is not an ordered pair on the line -2x+9y=-26

Answer 4

try d
(x=-5,y=-4)
-2(-5)+9(-4)=10-36=-26 which equals -26
so (-5,-4) is on the line -2x+9y=-26
d is the correct solution