HEy there!!
3/4 ( 12c - 4 ) = 15c + 15
( 3/4 ) ( 12c ) - ( 3/4 ) ( 4 ) = 15c + 15
9c - 3 = 15c + 15
Adding 3 on both sides
9c = 15c + 18
Subtract 15c on both sides
9c - 15c = 18
-6c = 18
Dividing by -6 on both sides
-6c / -6 = 18 / -6
c = -3
The required answer is -3
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