Question

Can someone please help me answer this question? Please? I would really appreciate it...
Question~
Solve the systems using the elimination method.
y = 2x - 1
y = -x + 7

Answer 1

My Answer~
Y=x-1A
-2x+y=-1
X+y=7
=
-2x+y=-1 Multiply by 1
X+y=7 multiply by 2
=
2x-1=-x+7
3x-1=7
3x=8
X=8/3
Y=13/3
Final answer~ (8/3, 13,3)

Answer 2

What my teacher said was wrong~
-2x+y=-1
x+y=7 good!
Yes, multiply by 2, but you didn't do it!?!

Answer 3

Can someone please show me how to fix my answer?

Answer 4

sure

Answer 5

\[y = 2x-1 \]

\[y_{2} = -x+7\]

we could easily eliminate y by multiplying the top equation by -1 and keeping the bottom the same.

so we get this. then we combine them and find that -y+y = 0 and we're left with x.

-y = -2x+1
y = -x+7

0 = -3x+8

-8 = -3x

x = (8/3)

now we have x = (8/3)

the next step is easier. to find y we can plug this in

-(8/3)+7 = y

y = (13/3)

Answer 6

@abbycross167 yep that's correct.

Answer 7

@Photon336 why is y = -x + 7(from my question) written as y2= -x + 7 in your answer?

Answer 8

@Photon336

Answer 9

@abbycross167 just ignore that lol that was a typo

Answer 10

ooh ok haha that you so much for helping me!!