Math: Pre-Algebra Problems!?!?!?

[LiL Zeus]

Solve This Problem & Show Your Work Thanks:

4x + 3 = -3x + 66

 

[killermunk1]

4x+3 = -3x + 66
4x + 3x + 3 = 66
7x + 3 = 66
7x = 63
x = 9

 

[hilrae]

4x + 3 = -3x + 66

7x + 3 = 66

7x = 63

x = 9

 

[hilrae]

4x + 3 = -3x + 66

7x + 3 = 66

7x = 63

x = 9