Question

Evaluate each expression for the given variables. 1. 5m+9+7n , for m=8 and n=1
2. 20-2(a-b), for a =3 b=2

Answer 1

1. Plug the values m and n in, so 5(8)+9+7(1)=?
2. Plug the values a and b in, so 20-2(3-2)=?

Answer 2

1. 5 times 8 is 40, plus 9 is 49 plus 7 is 56.
2. 3-2 is 1. 20-2 is 18.

Answer 3

I thought so but I was not sure
thank you

Answer 4

Your welcome.