How do you simplify #-12m(-9n)#? Algebra Expressions, Equations, and Functions Variable Expressions 1 Answer NGBRO Mar 30, 2017 #108mn# Explanation: #-12m(-9n)=12*9*mn=108mn# 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 1416 views around the world You can reuse this answer Creative Commons License