Question

How do you simplify `4(e+5)-(e+9)+(e+7)`?

Answer 1

`4e+18`

Explanation:

`4(e+5)-(e+9)+(e+7)`
`=4e+5*4-e-9+e+7`
`=e(4-1+1)+20-9+7`
`=4e+18`