How do you simplify 3r+7-3r?

Mar 3, 2018

7

Explanation:

$3 r + 7 - 3 r$

There are two 3r in the equation.

One has a positive sign and other has a negative sign.

So , you can just cancel them out.

$\implies \cancel{3 r} + 7 - \cancel{3 r}$

You are left with

$\implies 7$