Question

Find the Solution of the System of equations:
4x-5y=-52
-4x+3y=44

Answer 1

k so lets solve the first equation

Answer 2

I am horrible with probability. Because it's 'fake' math. But any help would be fantastic.

Answer 3

no probability

Answer 4

add the equations

Answer 5

add the equations (do you know what I mean by that?)

Answer 6

illl walk her through it

Answer 7

combine like terms

Answer 8

there are no like terms here.

Answer 9

the x's and the y's

Answer 10

uhh.. It's getting slightly confusing with you two lol..

Answer 11

Do you know the elimination method?

Answer 12

\(\large\color{black}{ \displaystyle 4x~~~~~~~~~~~~~~~~~~-5y~~~~~~~~=~~~~-52 }\)
\(\large\color{black}{ \displaystyle -4x~~~~~~~~~~~~~~~~+3y~~~~~~~~=~~~~44 }\)
\(\large\color{black}{ \displaystyle \text{______________________________} }\)
\(\large\color{black}{ \displaystyle (4x-4x)~~+~~~(-5y+3y)~~~~=~~~~(-52+44) }\)

Answer 13

the x-s cancel out, you see that (right?)

Answer 14

As you can tell, he added the equations together (using the elimination method)

Answer 15

Yes, I understand how to eliminate the x's and y's but what I am confused by is what kind of answer Plato is wanting me to give. I've done these problems trillion of different ways and they're always wrong.

Answer 16

it wants an (x,y) coordinate

Answer 17

Ok, so when you add the equations together, what did you get?

Answer 18

Yes I see, thank you. I was doing a different method.

Answer 19

Were you doing the subsitution method?

Answer 20

Spelled that wrong, whoopsie

Answer 21

Yeah that's what it told me to do in the tutorial on the site.

Answer 22

I would do a matrix with more variables, but here elimination is the best method.