Question

(7+7b)+(-2+8c)+(1+5d)

Answer 1

Answer: 7b + 8c + 5d + 6

Explanation:

1) (7+7b)+(-2+8c)+(1+5d)

combine like terms (starts with the ones with variables)

2) 7b + 8c + 5d

now all you need to do is add the numbers without variables

3) 7b + 8c + 5d + (7 + -2 + 1)

4) 7b + 8c + 5d + 6