1. Algebra 1 Section 3.2 Solve equations by multiplying and dividing Transformations for solving equations 1. Multiply each side by the same number 2. Divide each side by the same number Solve 5x = 15-2x = 7

2. Solve x= -4 3 -¾ x = -12 5 ¼ = -½ x

3. Properties of equality 1. Addition If a = b then a + c = b + c 2. Subtraction If a = b then a – c = b – c 3. Multiplication If a = b then a∙c = b∙c 4. Division If a = b then a/c = b/c; c ≠0 Identify the property shown If x = 5 then 2x = 2(5) If 7 = y then 7 + 6 = y + 6 If 12 = 6x then 2 = x If 2x = 7 then 2x – y = 7 - y

4. Page 140 ex 4 (frames per hour)(hours) = total number of frames Total frames = number of frames per second total seconds

5. Similar Triangles 12 = 6 4 2

6. The triangles are similar. Solve for x and y.

7. You ate three of the eight pizza slices and you paid $3.30 as your share of the cost. How much did the whole pizza cost?

8. assignment Page 141 Problems 13, 14-46 even, 50-58 even, 59,66,74,76