Question

Difference between (-7x+7) - (-8x-9)

Answer 1

x + 16

Explanation:

= (-7x +7) - (-8x-9)

= -7x+7+8x+9

*[positive because negative (outside the bracket) multiplied by negative (inside the bracket) will be positive.]

= -7x+8x+7+9 (rearranging like terms together)

= x + 16