Which expression is equivalent to 9x − 2x + 3 and why? (1 point) a
9x + x, because 9x − (2x − 3) = 9x + x

b
14x, because 9x − 2x + 3 = 9x + 5x = 14x

c
10x, because 9x − 2x + 3 = 7x + 3 = 10x

d
3 + 7x, because (9x − 2x) + 3 = 7x + 3 = 3 + 7x