What property justifies that 6x+9/3=2x+3? A. Commutative Property of Addition B. Commutative Property of Multiplication C. Distributive Property D. Addition of Like Terms

I'm not sure how to do this. Please help!

3 answers

Is it C?
you are correct
1/3 (6x+9) = 1/3 * 6 + 1/3 * 9 = 2x+3
so what ?