Question

please let em know how to fix this i m confused
problem 1
3x – 2y = 8
x = 2
substitute the second part
x=2 into the first part
3(2)-2y=8
6-2y=8
-2y=2
y=-1

then plug -1 in for y and solve for x
3x-2(-1)=8
3x+2=8
3x=6
x=2

check step
3x-2y=8
x=2
3(2)-2(-1)=8
3x2=6
-2x-1=2
6+2=8
All final answers must be given in the format of an ordered pair. (x, y)


Problem 2
2x-y=-4
-3x+y=-9

Solve for y in the first equation
2x -y = -4
-y = -4 -2x
y= 4+2x

Substitute into second equation
-3x+(4+2x) = -9

Simplify/Combine like terms/Solve for x
-3x +4 +2x =-9
-x +

Answer 1

Okay, what you can do for problem 2 is this:
\[-3x+y=9\]
\[y=3x-9\]
So start substituting like you did the first part

Answer 2

ok my teacher said i didint put x and y for my final answer and that i need to do the check problem and i dontget this

Answer 3

okay, you're doing it right. lemme do it for you so you could see it

Answer 4

Do you need both problems?

Answer 5

?

Answer 6

yes hon

Answer 7

ok.

Answer 8

Hopefully that helps (:

Answer 9

trying to open he documents

Answer 10

thank you iam woring on opening the documents

Answer 11

thank you i got one of them open it looks awesome

Answer 12

lol okay

Answer 13

sorry didnt mean to send 20 of thoses it froze up