Question

3m - (-m)
Write the expression in its simplest form

Answer 1

Answer is = 4m

Step by step

3m - (-m) = ?

This can be written as

3m -1(-m) = ?

Distribute multiply parentheses first

**Rule: When you multiply two negative numbers or two positive numbers then the product is always positive.

We multiply -1 x - 1m we get a positive + 1m

So

3m + 1m = Answer is 4 m.