Question

Evaluate the expression 20- 2m for each of the values of m below

1.m=0
2.m=2
3.m= -5

Answer 1

20-2(0)=20
20-2(2)=16
20-2(5)=10

Answer 2

1. 20

2. 16

3. 30

Explanation:

1.

`20-2(0)\\20-0=20`

2.

`20-2(2)\\20-4=16`

3.

`20-2(-5)\\20-(-10)\\20+10=30`