Question

-6x + y = 10
-x - 4y = -15
solve by substitution....

Answer 1

solve for y in the first equation and then substitute it into the second

Answer 2

you there?

Answer 3

solve for y in the first ?

Answer 4

so y = -6x + 10

Answer 5

yea, you wanna get y by itself on the left side of the first equation

Answer 6

well, to get rid of the -6x, you have to do the opposite operation, which would be addition. so it should be y = 6x + 10

Answer 7

now that we know what y equals in terms of x, we can substitute it for y in the second equation

Answer 8

i got x = 9 for the first

Answer 9

you gotta plug 6x + 10 for every y you see in the second equation so

-x - 4(6x + 20) = -15

Answer 10

i got x = -1

Answer 11

Correct