Question

Solve the system of equations, y = x – 3 and y = –2x + 6, using the substitution method.

(no answer choices)

Answer 1

x=9

Explanation:

-2x+6=x-3

-1x+6=-3

-1x=-9

divide both sides by -1

x=9

hope this helps

Answer 2

• (3, 0)

Explanation:

Given system:

• y = x – 3 and
• y = –2x + 6

Substitute y and solve for x:

• x - 3 = -2x + 6
• x + 2x = 6 + 3
• 3x = 9
• x = 3

Find y:

• y = x - 3 = 3 - 3 = 0

Solution is:

• (3, 0)