Answer:x=8 and y=2
Step-by-step explanation:
To find 2x-4y=8 and 3x+6y=36
Solve simultaneously
Using elimination method
6x-12y=24
6x+12y=72
To eliminate x
-24y=-48
Divide through by -24
y=2
To get x
Substitute for y in equation 1
2x-4(2)=8
2x=8+8
2x=16
Divide through by x
x=8
See Quadratic Formula and Determinant's/Delta's formula
Answer:
2(6x+78)
Unless it's the exact number. You hadn't specified what x is.