How do you simplify $8m-m+3n$ ?

Hint: For answering this question we need to simplify the given expression $8m-m+3n$ . For simplifying we will perform simple basic arithmetic calculations like adding the similar terms in the expression. Here we have two terms containing the variable $m$ and one term containing the variable $n$ so we will perform subtraction between similar terms containing the variable $m$.

Complete step by step solution:
Now considering from the question we have been asked to simplify an expression given as $8m-m+3n$ .
From the basic concepts we know that for simplifying any expressions in this form we need to perform simple basic arithmetic operations like subtraction between the similar terms to eliminate some terms and write it in less number of possible terms.
Initially, we have two terms containing the variable $m$ and one term containing the variable $n$ so we will perform subtraction between similar terms containing the variable $m$ .
So after performing the subtraction we will have $ 8m-m+3n=7m+3n$ .
Therefore we can conclude that the given expression can be simplified as \[8m-m+3n=7m+3n\] .

Note: While answering this question we should be sure with our calculations and concept we apply during the process of solution of this question. This is a very simple question and very few mistakes are possible in this type of question and can be answered within less span of time. Similarly we can simplify any expression for example like if we have an expression \[5p-3p+2r\] we can simplify this by performing simple basic arithmetic operations as \[5p-3p+2r\Rightarrow 2p+2r=2\left( p+r \right)\].