If 3x + 2y=8 and 2x - y =3, find the value of 4y - 3x.
A
2
B
3
C
1/2
D
-2
Correct Answer: -2
Here,3x+2y=8 2x-y=3if we multiply equation 2 with 2 and add it with equation 1 then we get, 7x=14 or x=2now, 4-y=3 (by substituting x=2 in equation 2) or, y=1So, 4y-3x=4 - 3*2= -2