Question

Which expression is equivalent to 17x − 8x + 2 and why?

2 − 9x, because (17x − 8x) + 2 = −9x + 2 = 2 − 9x

2 + 9x, because (17x − 8x) + 2 = 9x + 2 = 2 + 9x

11x, because 17x − 8x + 2 = 9x + 2 = 11x
7x, because 17x − 8x + 2 = 17x − 10x = 7x

Answer 1

2 + 9x, beacuse (17x - 8x) + 2 = 9x+2

Explanation:

Combine like Terms: 17x - 8x + 2=

9x+2

Answer 2

17x − 8x + 2 = 9x + 2 ...............combine like terms

answer

2 + 9x, because (17x − 8x) + 2 = 9x + 2 = 2 + 9x ............commutative property