How do you simplify #m+m-m+m#? Algebra Expressions, Equations, and Functions Variable Expressions 1 Answer army4everbts · Stefan V. Mar 23, 2018 The answer is #2m#. Explanation: #m+m-m+m# As we know, #m-m# is equal to zero, so #m+m=2m# Answer link Related questions How do you write the variable expression for: a quotient of 2 and the sum of a number and 3 ? What are variables? What are variable expressions? How do you write variable expressions? How do you evaluate variable expressions? How do you simplify the expression #3x-x+4#? How do you write a quotient of a number and 6 as an expression? How do you evaluate the expression #2x+1# for #x=1#? How do you write a product of a number and 2 as an expression? How do you write 5 less than 2 times a number as a variable expression? See all questions in Variable Expressions Impact of this question 23037 views around the world You can reuse this answer Creative Commons License