Question

substitution method 5x-2y=-15 2x-y=-5

Answer 1

You must get x or y by itself in one of the equations... I choose y in the second equation.
Add 5 and add y to each side.
You now have 2x+5=y
Substitute 2x+5 for y in the first equation. 5x-2(2x+5)=-15
Simplify by distributing the 2.
5x-4x-10=-15
Get x by itself now.
x-10=-15
Add 10 to each side.
x=-5
Now substitute -5 for x in either equation. I choose the second again because it is simpler.
2(-5)-y=-5
-10-y=-5
Add 5 and add y to both sides.
-5=y

Your coordinates are (-5, -5)

Answer 2

thank you :)

Answer 3

Bethany your answer is incorrect. Try placing your x and y into one of the original equations... It doesn't come out with the correct answer.

Answer 4

brookew4a is correct

Answer 5

Thanks blur :)

Answer 6

sorry.

Answer 7

for emlimination method 3x+2y=6 6x+4y=-3
i got 36=9 is that correct