Question

Find the solution of the system of equations.
3x – 3y = 18
3x – 8y = -2

Answer 1

x=10, y=4

Explanation:

3x-3y=18

(-)3x-(-)8y=-(-)2 -3x+8y=2 add to first equation to eliminate x

5y=20

y=4

substitute y with 4

3x-3(4)=18

3x=30

x=10

x=10,y=4