Question

Solve the system by substitution
y = 6x -24
y = -2x

Answer 1

Plug second equation into first
-2x = 6x - 24
Subtract 6x from both sides
-8x = -24, x = 3
Plug 3 for x in second equation
y = -2(3), y = -6
Final answer: x = 3, y = -6

Answer 2

Answer: x = 3, y = -6

Explanation:

Substitute the y into the equation to get -2x=6x-24

8x=24 so x = 3. Then plug x=3 into the second equation to get y = -6