Question

Solve each system of equations by using substitution:
Show work and steps of how you did it.

25. x + 4y = -8
3x + 2y = 6

26. 10x - 9y = 15
5x - 4y = 10

27. 3x - 7y = -3
2x + 6y = -34

Answer 1

ok you ready for this?

Answer 2

One problem at a time and yes

Answer 3

with substitution you want to get x or y = to something then plug it into the other equation

Answer 4

let's work the first one

Answer 5

get x by itself

Answer 6

in the top equation

Answer 7

yes

Answer 8

what do you have?

Answer 9

x = -4y - 8

Answer 10

now, the second equation has an x

Answer 11

yes

Answer 12

take that and put it in there

Answer 13

and distribute

Answer 14

tell me what you get

Answer 15

y = -3

Answer 16

ok now, plug y = -3 into either one of the origional equations to find x

Answer 17

what is x?

Answer 18

I kind of need help on this one a little bit