Question

i need help solving this question with substitution:
2.5x+y=-2
3x+2y=0

Answer 1

can you help me?

Answer 2

yeah , i think

Answer 3

can you walk me through it

Answer 4

I cant really remember the steps , i learned it awhile ago...

Answer 5

well this is how i learned it
for instance on this problem
5x-2y=14 2x-y=5
5x-2(2x-5)=14 -2x -2x
5x-4x+10=14 -y=-2x+5
x+10=14 --- --- ---
-10 -10 -1 -1 -1
x=4 y=2x-5

2(4)-y=5
8-y=5
-8 -8
-y=-3
-- --
-1 -1
y=3

ANSWER: (4,3)



but i keep getting a wacky answer.

Answer 6

that seems right to me .... ;/