Question

Solve using elimination.
2x + 4y = 22
2x - 2y = -8

Answer 1

multiply second equation by two, what do u get

Answer 2

after that you can use elimnation

Answer 3

2x + 4y = 22
4x - 4y = -16?

Answer 4

now add both equations together

Answer 5

6x + y = 6?

Answer 6

no.
6x = 6 *

Answer 7

the y's cancel out

Answer 8

oooh yeah, my bad.

Answer 9

anyways plug your value of x back into the equation
2x + 4y = 22
and solve for y.

Answer 10

2x + 4y = 22
2(1) + 4y = 22
6y = 22
Y = 3.666666

Answer 11

Right? @shamil98

Answer 12

No, when you plug in (1):

2(1) + 4 y = 22

2 + 4y = 22

4y = 20

y = 5

Your answers are x = 1 and y = 5

Answer 13

Remember that you can only add like terms. You cannot add 2 + 4y to get 6y because 2 does not have a y.

Answer 14

yeahhh. I rememer, thank you! :)