Question

Can someone please solve 10n - 3 = 7n + 21

Answer 1

`10 n-3 = 7n+21`

Add 3 to both sides :


`10n-3+3=7n+21+3`


`10n=7n+24`

Subtract 7 n from both sides:


`10n-7n=7n+24-7n`


`3n=24`

Divide both sides by 3 :


`(3n)/(3) = (24)/(3)`


`n = 8`

hope this helps!