Question

solve the following 3x+15=4x-12

Answer 1

3x+15=4x-12

27=x

therefore x=27

Answer 2

The answer is here....

3x + 15 = 4x - 12

=> 3x - 4x = -12 - 15

=> - x = - 27

=> Minus gets cancelled on both sides.

=> x = 27

ANS : x = 27

(Above sum is solved using Linear equation formula)