Question

Use elimination to solve the system 6x – 3y = 2 and 2x – 9y = -2

Answer 1

x = 1/2

y = 1/3

Explanation:

6x – 3y = 2 (Multiply this by -3)

2x – 9y = -2

-18x + 9y = -6

2x – 9y = -2

-16x = -8

x = 1/2

2x – 9y = -2

2(1/2) - 9y = -2

1 - 9y = -2

-9y = -3

y = 1/3