Answer: x=2, y=7
Step-by-step explanation:
6x+3y=33.................. (1)
4x+y=15.......................(2)
Using elimination method multiply equation one by 1 and equation 2 by 3
6x+3y=33...................(3)
12x+3y=45....................(4)
Eliminating y
We have
6x+3y=33
-
12x+3y=45
The single equation becomes
-6x+0=-12
-6x=-12
Minus cancelled minus
6x=12
x=12/6
x=2
To find y substitute x=2 in equation 1
6x+3y=33
6(2)+3y=33
12+3y=33
3y=33-12
3y=21
y= 21/3
y=7
