Question

How do you solve `3( 1+ 4n ) - 2( 5n - 3) = 25`?

Answer 1

`n=8`

Explanation:

`3(1+4n)-2(5n-3)=25`
First we solve brackets
`=>` `(3+12n)-(10n-6)=25`
Open the brackets
`=>` `3+12n-10n-(-6)=25`
`=>` `3+12n-10n+6=25`
`=>` `3+2n+6=25`
`=>` `2n+9=25`
send `9` to Right Hand Side
`=>` `2n=25-9=16`
Divide by 2 on both side
`=>` `(2n)/2=16/2`
`=>` `n=8`