1. 8.1 pt 2 Equations (Mult./Div.)
Objective: Students will be able to solve equations using multiplication and division.

2. Definitions
Division Prop. of Equality: divide each side by number (not zero)
Ex: 2x = 18
Multiplication Prop. of Equality: multiply each side by reciprocal (not zero)
Y / 2 = 13

3. Solve equations with division
11x = 33
-6x = 36
-39 = 13v
42 = -21a
3x = 33

4. Student Division 3x = 60 -15y = 60 4y = 48 -9v = 63 25x = -50
12w = -120

5. Solve with Multiplication
-7 = b/8
x/7 = 6
y/3 = 10
y/-3 = 5
11 = p/6
-9 = y/20

6. Solve by Multiplication
x/7 = 5
Y/-9 = 8
p/3 = 6
a/10 = -7
c/-2 = 90
m/-30 = 3

7. Fractions
5/7t = 10
7r = -7/8

8. Word Problem
Problem: If a dog digs a hole in the ground at 15 ft/min, how long will it take to dig a 90ft. Hole?
Know: 15 ft./min
digs 90ft. Hole

9. Student word problem
Problem: If a fire destroys 50 acres then a foundation plants 300 seeds per/acre to replace them, how many total seeds were planted?
Know: 50 acres destroyed, planted 300 seeds per acre.

10. Wrap-up
Questions / Comments
Ic/Hw: workbook pg. 45