The expression on the left side of an equation is shown below.
3(x + 1) + 9 = _____
If the equation has no solution, which expression can be written in the box on the other side of the equation?
A. 3(x + 4)
B. 2(x + 6) + x
C. 4(x – 3) – x
D. 3(x + 1) + 9x



