Question

Find the solution of this system of equations.
Seperate the x- and y-values with a comma.

x=8+y
-2x+6y=-20

Answer 1

Use substiotuion :)

Answer 2

\[\huge-2(8+y)+6y=-20\]

Answer 3

solve the first equation for 'y' then substitute into second equation.

Answer 4

I'm not good with this stuff at all lol

Answer 5

Distribute first
\[\huge −2(8+y)\]

Answer 6

-16 - 2y

Answer 7

good :)
\[\huge-16-2y+6y\]
combine like terms

Answer 8

-16+4

Answer 9

no

Answer 10

-16+4y*

Answer 11

good
\[4y-16=-20\]
isolate y

Answer 12

I don't know how to do any of that haha, I'm just finishing a study guide I have so I can pass for the year :/

Answer 13

Well firt step to isolate would be to add the 16 to both sides :)
-16+16=0 so it cancels
-20+16=?

Answer 14

-4

Answer 15

good now just divide! :)
4y=-4
4/4=1 so you are left with y
-4/4=?

Answer 16

-1

Answer 17

so it's 7, -1?

Answer 18

yep :) good job!

Answer 19

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Answer 20

Thanks!