1. Combining Like terms

2. + = Combining Like terms
Combining Like terms is like grouping similar objects. x x x x x x x x + = x x x x x x x x x x = 9x 4x + 5x
To combine like terms that have variables, add or
subtract the numerical coefficients.

3. 7x + x = 8x Combining Like terms Definition:- Example 1: Add 7x and x
You can add Like terms together to make one term.
Example 1: Add 7x and x
Solution:
Like terms
7x x
= 8x

4. -8x2y + 6x2y = -2x2y Example 2: Add -8x2y and 6x2y Solution:
Like terms
-8x2y x2y
= -2x2y
By Integer rule, when both signs are different then subtract and put bigger number sign.

5. Example 3: Add 6a + 3 and 4a + 2. 6a + 3 + 4a +2 = (6a + 4a) + 3 +2
Solution:
Like terms
6a a +2
Like terms
= (6a + 4a)
Combining Like terms
= 10a + 5

6. Subtracting Like terms
Example 1: Subtract 6t – 4t .
Solution:
Like terms
6t t
= 6t – 4t
= 2t

7. Example 2: Subtract -8p2q from 12p2q
Solution:
Like terms
12p2q - (-8p2q)
= 12p2q + 8p2q
By Multiplication rule of integers, - x - = +
= 20 p2q

8. Try these 1. Add 4m+8 and 6m+7 2. Subtract 12m2n from -15m2n
3. Subtract 12m – 5m .