Question

Simplify the expression 8a-2b+4 for the value a=3 and b = -5

Answer 1

38

Explanation:

Don't worry this is pretty easy! Simply plug in your given values into the expression. So if a=3 and b=-5, we would put this in the equation.

8(3)-2(-5)+4

24+10+4<--- -2(-5) would be 10 since negatives cancel out. Remember to first to parentheses, then multiply/divide next.

38

Answer 2

38

Explanation:

Simply plug in 3 where a is, and -5 where b is as such.

`8(3) - 2(-5) +4`

`24 + 10 + 4`

=
`38`