Simplify expressions

Question

i need to know how to simplify 3(7x) – 2(4 – x)

Answer 1

3(7x) – 2(4 – x)

First multiply the 3 and 7 to get 21x

21x– 2(4 – x)

Then multiply the -2 times the 4 (you get -8) and the -2 times the -x (you get +2x)

21x-8+2x

Combine like terms 21x+2x=23x

So the simplified answer is 23x-8