Question 59660
Solution: 

The given equation is:  12x – 28 = -63 + 7x 

Grouping all the like terms, that is bringing all the x terms to one side, we get: 

12x - 7x – 28 = -63 

Adding 28 to both sides of the above equation, we get: 
==> 12x – 7x = -63 + 28 

==> 5x =  - 35

==> x = -35/5

==> x = -7 

Thus, the value of x = -7