Question

can someone help me please???
solve the system using an equivalent system.
-2x - y = 0
3x - y= 10

(4,-2)
(-2,4)
(2,-4)
(-4,2)

Answer 1

If you have -2x-y=0 first you need to get y by itself so add it to the other side.
then you have -2x=y. you can then plug this into the other equation once you get y by itself there too. so you would end up with y=-10+3x

-2x=-10+3x
10=5x
x=2
y=-4 put x back into the first equation -2x=y

the answer is (2,-4)

Answer 2

thank you so much

Answer 3

no problem