simply each exspession.
a) -7+13+5 (-6+8)
b) 3x-4 (x+2y)+17y

a) 16

b) - x + 9y

Step-by-step explanation:

First, lets simplify problem a.

- 7 + 13 = 6

- 6 + 8 = 2

5 × 2 = 10

6 + 10 = 16

16 would be your answer for problem a.

Next, lets simplify problem b.

First, expand the equation

-4(x + 2y): -4x - 8y = 3x - 4x - 8y + 17y

Then, simplify it

3x - 4x - 8y + 17y =  -x + 9y =  - x + 9y

- x + 9y would be your answer for problem b.

Hope this helps!!

step-by-step explanation: