1 6 Combining Like Terms Introduction to Combining

1 -6 Combining Like Terms Introduction to Combining Like Terms: 1) Family Grouping Activity 2) Mrs. Bonsecour’s video Pre-Algebra

1 -6 Combining Like Terms Warm Up (Top of Page 70) Solve. 1. 16 8 + 4 1 11 2. 20 ÷ 5 · 4 16 3. Use distributive property to simplify this expression x 12 4 Pre-Algebra

1 -6 Combining Like Terms I CAN combine like terms in an expression. Pre-Algebra

1 -6 Combining Like Terms Vocabulary Pre-Algebra

1 -6 Combining Like Terms in an expression are separated by plus or minus signs. Like terms can be grouped together because they have the same variable raised to the same power. Equivalent expressions have the same value for all values of the variables. Pre-Algebra

1 -6 Combining Like Terms Pre-Algebra

1 -6 Combining Like Terms Additional Example Combining Like Terms To Simplify Combine like terms. 14 a – 5 a Identify like terms. 9 a Combine coefficients: 14 – 5 = 9 7 y + 8 – 3 y – 1 + y 5 y + 7 Identify like terms ; the coefficient of y is 1, because 1 y = y. Combine coefficients: 7 – 3 + 1 = 5 and 8 – 1 = 7 Pre-Algebra

1 -6 Combining Like Terms Additional Example 2 A: Combining Like Terms in Two -Variables Expressions Combine like terms. 9 x + 3 y – 2 x + 5 Identify like terms. 7 x + 3 y + 5 Combine coefficients: 9 – 2 = 7 Pre-Algebra

1 -6 Combining Like Terms Additional Example 2 B: Combining Like Terms in Two -Variable Expressions Combine like terms. 5 t + 7 p – 3 p – 2 t Identify like terms. 3 t + 4 p Combine coefficients: 5 – 2 = 3 and 7 – 3= 4 Pre-Algebra

1 -6 Combining Like Terms Additional Example 2 C: Combining Like Terms in Two -Variable Expressions Combine like terms. C. 4 m + 9 n – 2 Pre-Algebra No like terms.

1 -6 Combining Like Terms Try This: Example 3 Combine like terms. A. 2 x + 5 x – 4 y + 3 Identify like terms. 7 x – 4 y + 3 Combine coefficients: 2 + 5 = 7 B. 9 d + 7 c – 4 d – 2 c Identify like terms. 5 d + 5 c Combine coefficients: 9 – 4 = 5 and 7 – 2 = 5 C. 8 g + c – 6 Pre-Algebra No like terms.