Slide 1

Slide 2 Twins, Triplets, Quadruplets, Quintuplets, etc. Combining Like Terms Slide 3 Combining Like Terms Like terms are numbers or letters that are the same and can be grouped together. Add or subtract them to group them up. Slide 4 3 9d 6d 16d Step 1 If you have any subtractions signs in the problem, do Keep, Change, Opposite to make the entire problem ADDITION. The problem becomes: 3 + - 9d + - 6d + - 16d Slide 5 Step 2 Combine like terms. Several terms have the variable d. They can all be combined. - 9d + - 6d + - 16d = - 31d Slide 6 Step 3 Rewrite the expression. 3 + - 31d Slide 7 7 + 4n 7n 2 3 + 8n + 4n 2 Step 1 Change all subtraction to addition. 7 + 4n + - 7n 2 + 3 + 8n + 4n 2 Step 2 Combine like terms 7 + 3 = 4n + 8n = - 7n 2 + 4n 2 = 4 12n -3n Slide 8 Step 3 Rewrite the expression (highest exponent first) -3n + 12n + 4 Slide 9 Practice, Practice, Practice 1.4x + 3x + 2x + - 6x 2. - 14j - 7b + 8j + 10 3.3b - 6b + 9b + 5b + - 3b = - 2x + 5x = - 6j + - 7b + 10 = 12b + - 4b Slide 10