Question

Solve by using elimination. Express your answer as an Ordered pair (-x +2y=3 3x-2y=7

Answer 1

(5,4)

Explanation:

-x+2y=3

3x-2y=7

Add the like terms( 2y and -2y)(-x and 3x)(3 and 7) together. Do this vertically. 2y and -2y cancel eachother out.

• 2x=10

Divide both sides by 2

• x=5

To find y, substitute x in for y in one of the equations

• -5+2y=3

add 5 to both sides

• 2y=8

Divide both sides by 2

• y=4

Check:

• -5+2(4)=3
• 3=3