Question

Can someone please show me how to answer this question? I will fan and give a medal....

Question~
Solve the systems using the elimination method.
y = 2x - 1
y = -x + 7

Answer 1

Multiply each side of the second equation by -1.
Add the two equations together. The y terms will subtract out.

Answer 2

so the second equation would look like this after I multiply --
y=1+-7?

Answer 3

@robtobey

Answer 4

What do u think

Answer 5

umm what? I think the equation is supposed to look like y=1+-7 but I'm not sure

Answer 6

Please actually follow Tobey's instructions: "Multiply each side of the second equation by -1.
Add the two equations together. The y terms will subtract out." What's left? You will hav e enuf info there to be able to solve for x.

Answer 7

abby: "I think the equation is supposed to look like y=1+-7" is either not a function or not a very good one. Where's your independent variable?

Answer 8

okay first u rearrange them it should look like this
-2x+y=-1
x+y=7

Answer 9

-2x+y=-1-----------------X1 (Multiply by 1)
x+y=7--------------------X2 (Multiply by 2)

Answer 10

i think u can take it from here

Answer 11

Abby: Take that as a good challenge. Show your stuff!