Adding Like Terms TeacherTwins©2014

Warm Up Write each expression or equation. 1). The sum of two times a number and 6 equals 57. 2). Will’s weight decreased by 4. 3). The quotient of 76 and a number is 152. 4). Rikki’s allowance increased by 6 is 20 dollars. 5). The product of 16 and the sum of a number and 5. 2x +6 = 57 W-4   A + 6 = 20 16(y+5)

Adding Like Terms Flippable

Like Terms     Remember only the variables have to be the same. The coefficients ( the number you multiply the variable by) do not have to be the same. You can add like terms to make one term. You must use your integer rules when you have negative coefficients.

Unlike Terms Terms that do not have the same variables.   You cannot add these terms because they are not like terms.

Combining Like Terms in Expressions     In this expression there are only 2 like terms. We can combine 4x and -6x. We cannot add anything to 7y or 7.

  Combine like terms          

12   7x +7   12h + 2j - 12  

Closure List 3 terms that are alike and explain how you know they are alike. List 3 unlike terms and explain how you know they are not alike.