Question

Simplify by combining like terms

1) 7b - (3a - 8b)

2) 4a-5(a+1)

show work, please

Answer 1

1)15b-3a

2)-1a-5

Explanation:

1）7b-1(3a-8b)

7b-3a+8b

7b+8b-3a

15b-3a

2）4a-5(a+1)

4a-5a-5

-1a-5