15. Find the sum of 16y and -5y?
16. Find the difference of 10x'y and 2x'y
17. Subtract 9a from -15a
18. From -9cd?, subtract -2cd?

answer: 91

step-by-step explanation:

incomplete question. how do you expect anyone to you when you do not post the question in its entirety?

step-by-step explanation:

i believe its "c" because all of the other options include a but it could be d because there is a way of financing with cash at certain places but its uncommon.

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.