Question

okay, so i will give a medal to whoever can sucsessfully teach me how to solve this....
2x + y = 1
4x + 2y = −2

Answer 1

i dint know

Answer 2

@kevin_hart

Answer 3

its solving system of equations using substittion

Answer 4

@dmezzullo please help??

Answer 5

Interesting...

2x + y = 1
4x + 2y = -2

multiplying "2x + y = 1" by 2 gives you:
4x+2y = 2

so you have:

4x + 2y = 2
4x + 2y = -2

So the same equation is +/-2 FWIW...

Answer 6

thank you!!

Answer 7

(solving for x)
2x+y=1 (subtract y)
2x-y=1-y

2x=-y+1 (no here you will divide by two)
2x/2= (-y+1)/2

so

x=(-y+1)/2





once you have found x plug (-y+1)/2 on either equation (remember just for x)

so 2x + y = 1

2((-y+1)/2) + y + 1 -------> Solve


this ^^^^ will give you Y


once you have Y just plug y into any of the original functions and so then you find x

Answer 8

You mean that actually helped?

I was sitting here wondering what I was supposed to do with it!!! :-)

Anyway, glad to be of assistance! :-)

And thank you!