Question

1) 9f - 2 - 8f

2) -8 (-2-5z) + 7
3) 8r - r
4) 2-8k-6k
5) (-2r-6)
6) b+8b

Answer 1

1) subtract 9f and -8f = f - 2

2) factor 8 with the numbers in the parenthesis and then sum 7 with 16
16 + 40z + 7 = 23

Answer 2

1) f-2
2)23+40z
3)7r
4)2-14k
5)-2r-6
6)9b