Question

How do you solve `0.4( 5- 0.4n ) = - 3.2`?

Answer 1

divide by 0.4

`(5-0.4n)=-8`

add 0.4n

`5=0.4n-8`

add 8

`13=0.4n`

divide by 0.4

`13/[0.4]=n`

`n=130/4=65/2=32.5`