Please Solve?

7x + 4x + 4 + 9  =  3x + 3 +7x

Simplify each side:  7x + 4x  =  11x                 4 + 9  = 13                 3x + 7x  =  10x

11x + 13  =  10x + 3

Get all x's to one side, all the numbers to the other.

Get all the x's to one side, if you subtract  10x  from both sides all the  x's  will disappear from the right side:

11x + 13 - 10x  =  10x + 3 - 10x

x + 13  =  3

Subtract  13  from both sides:

x + 13 - 13  =  3 - 13

x  =  -10