Question

Solve the system by substitution.
I have to show all my work, but i really don't understand these types of problems.

y= 2x - 6
6x - 2y = 22

Answer 1

sort of.

Answer 2

@sooobored

Answer 3

do 2x-6?

Answer 4

its been forever since ive done one of these. im so lost. just trying to catch on as we go

Answer 5

okay.

Answer 6

i'm completely lost lol.

Answer 7

4 and -4?

Answer 8

i did multiplication. but i must not be understanding then.

Answer 9

because it comes up -4 if you do it on a calculator?

Answer 10

do you have to be such an retriceole?

Answer 11

retricehole

Answer 12

The first equation tells you what y equals.

In the second equation, substitute (2x - 6) for the y variable in the second equation.

6x - 2y = 22

6x - 2 * (2x - 6) = 22

Simplify that and solve for x.

Answer 13

After you crank out the value of x, then substitute it in the first equation and solve for y.

First Equation: y= 2x - 6