Question

What is the solution to the system of equations?
5x+4y=8
x-2y+10

Answer 1

you have to find x and y.

Answer 2

you have to equal x or y to solve
so,
5x+4y=8
x-2y+10 (2)

5x+4y=8
2x-4y=20
=======
7x=28
x=28/7
x=4

+4y and -4y will be cancelled.

Answer 3

to find y,you use any one original equation and plug in the value of x

5(4)+4y=8
20+4y=8
4y=8-20
4y=-12
y=-12/4
y=-3

Answer 4

@Riot_Lion01 Understand?

Answer 5

uhhhhh i think so

Answer 6

Okay.. :)

Answer 7

so would y = -3 and x = 4 or do I still have to plug it in?

Answer 8

to the equation

Answer 9

uhh bye i guess

Answer 10

Do you know @tianalovesyou17

Answer 11

so 4,-3?

Answer 12

Yeah that's the answer.

Answer 13

x=4.y=-3

Answer 14

Yes, the solution to the system is (4, -3). You can even plug the numbers in to one of the original equations to see for yourself.

Answer 15

ok cool thank you :)

Answer 16

@BunnyBree can you help me with a few more?

Answer 17

I'll try. (: