Simplify both sides a bit by multiplying 5 with (2x-7) and -3 with (6x+4)
10x-35=33-18x-12
Simplify like terms
10x-35=21-18x
Get like terms together (all the x's on one side, and constants on another)
10x+18x=21+35
Simplify
28x=56
Get x alone by dividing both sides by 28!
x-2