What is the solution of the system? Use substitution. 2x - y = -7 and 4x- y = -4
(–1.5, 4)
(1.5, 10)
(4, –1.5)
(–1.5, –2)
2. What is the solution of the system? Use elimination 5x +7y = 32 and 8x +6y = 46
(8, 5)
(1, 5)
(7, 0)
(5, 1)

Question

What is the solution of the system? Use substitution. 2x - y = -7 and  4x- y = -4
(–1.5, 4)
(1.5, 10)
(4, –1.5)
(–1.5, –2)
2. What is the solution of the system? Use elimination 5x +7y = 32 and 8x +6y = 46
(8, 5)
(1, 5)
(7, 0)
(5, 1)

pfenn1 · Answer

$$2x - y = -7 $$$$ 4x- y = -4$$Rearrange the first equation to solve for y, then substitute into the second sentence for y. Then solve for x.

anonymous · Answer

I got (1.5, 10) and (8,5) but i dont think they are right

pfenn1 · Answer

I haven't calculated the second problem yet but my answer for the first problem is the same as yours.  Sounds like you are doing it correctly.

anonymous · Answer

Oh Okay!

pfenn1 · Answer

Hmm. I got another answer to the second question.

anonymous · Answer

I did too, I got 5,1

pfenn1 · Answer

Yeah, that's what I got.