Question 675277
Solution;

Given equations
eq. (1)---> V/4-3=5   
eq. (2)---> -7+f/2=-1

Take eq.(1)

V/4-3 = 5

or

V/4 = 5+3

or

V/4 = 8

or 

V = 8 * 4

V = 32

Take eq. (2)

-7 + f/2 = -1

or

f/2 = -1 + 7

or

f/2 = 6

or

f = 6 * 2

f = 12

Therefore the required solution set is

Solution Set = (V, f) = {(32, 12)}