Question

-10x – 2y = -30
3x + 2y = 9
X=

Answer 1

Answer: x = 3

Explanation:

-10x - 2y = -30

3x + 2y =9

use elimination method...

-2y and 2y = 0

-10x = - 30

3x = 9

add together...

-7x = -21

solve...

x= 3