1. bellwork
x – 2(x + 10) = 12

2. objective
Students will be able to solve equations when there are variables on both sides of the equal sign.

3. 2-4 Solving equations with variables on both sides of the equal sign

4. When variable are on both sides
Use the distributive property if necessary
Combine like terms
If like terms are on the same side of the equal sign, you may just add them together.
If like terms are on different sides of the equal sign, you must do the opposite operation to combine them. (whatever you do to one side of the equal sign you have to do to the other)

5. examples
a) 3n + 2 = -2n – 8 b) –(5a + 6) = 2(3a + 8) c) 3w – 6 + 2w = -2 + w

6. homework
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2-20 even, 11