Question

solve using subtitution
y = 2x – 8
y = -x + 1

Answer 1

Substitute one of your equations for a variable in the other.
To make it simple substitute 2x-8 for y in y=-x+1

Answer 2

\[(2x - 8) = -x + 1\]

Answer 3

ok

Answer 4

subtract x from both sides
then we have x - 8 = 1

Answer 5

add 8 to both sides to get x = 9

Answer 6

Now put nine into either of the original equations to find y

Answer 7

3, -2?

Answer 8

y = 2(9) - 8
y = 10