8b+{−[4a+2(7a−2b) ]−3}=

Question

can anybody help me simplify this?

Answer 1

8b+[-[4a+2(7a-2b)]-3]

Multiply 2 by each term inside the parentheses.
8b-(4a+(14a-4b))-3

Since 4a and 14a are like terms, add 14a to 4a to get 18a.
8b-(18a-4b)-3

Multiply -1 by each term inside the parentheses.
8b+(-18a+4b)-3

Since 8b and 4b are like terms, add 4b to 8b to get 12b.
12b-18a-3

or -18a+12b-3