Question

* I GIVE MEDALS!* HELP PLEASE! Can i please get help on this using the systems of elimination? here is the equation 6x – 4y = 54
–9x + 2y = –69

Answer 1

Multiply second equation with 2 and add both the equations which gives u x term and then substitute x in any of the equation to get y term

Answer 2

can u try??

Answer 3

6x – 4y = 54 ---> times 3 ---> 18x – 12y = 162
–9x + 2y = –69 ---> times 2 ---> -18x+4y=-138
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you are adding them

Answer 4

-8y=24
y=-3

you can do the x, I am sure.

Answer 5

so you loose x now because it is 0 and so it is -8y=24?

Answer 6

@solomanZelman ?

Answer 7

Yes, and then not hard,
\[-8y=24\]\[-8y\color{red} {\div (-8)}=24\color{red} {\div (-8)}\]\[y=3\]to solve for x you would have to plug it in.
\[6x-4y=54~~~~~~~~~~~~~~\color{blue} {(1st~~~original~~~equation.)}\]\[6x-4(\color{red} {-3})=54\]\[6x+12=54\]\[6x+12\color{red} {-12}=54\color{red} {-12}\]\[6x=42\]\[6x\color{red} {\div 6}=42\color{red} {\div 6}\]\[x=7\]