Unit 8 - 8th - Expressions and Equations

Distributive Property and One Step Equations

100

Simplify 12(-t - 4)

What is -12t - 48

200

(3/4)x = -3/8

x = -1/2

300

Solve 32 + x = 109

What is x = 77

400

1.025v = -5.125

What is v = -5

500

a - (3/4) = (-1/2)

What is a = 1/4

Variables on both sides

100

4p + 2 = 3p - 7

What is -9

200

3n - 5 = 7n + 11

What is -4

300

-8x - 2 = -4x + 18

x = -5

400

3x + 1.2 = -4x -0.9

What is x = -0.3

500

5(n +3) - 4n = 40

What is n = 25?

Two Step Equations

100

4x - 26 = -10

What is x = 4

200

c/4 - 3 = 1

What is c = 16

300

-20 + x/7 = -26

What is a = -42

400

-1/5(x - 3) = 4

What is x = 23?

500

(2x-7)/5 = 25

What is x = 66

Absolute Value Equations and Word problems!

100

5|x| - 8 = 2

What is x = 2 or x = -2

200

|x/3| - 2 = 4

What is x = 18 or x = -18

300

• Since starting a new recycling plan, Terrell's office recycles 6 kilograms of paper each week.
• How many weeks will it take Terrell's office to recycle a total of 24 kilograms of paper?

4 weeks

400

• Wesley can bake 11 cookies with each scoop of flour. How many scoops of flour does Wesley need in order to bake 33 cookies?

3 scoops of flour

500

Three friends go bowling. The cost per person per game is $5.30. The cost to rent shoes is $2.50 per person. Their total cost is $55.20. How many games did they play?

What is 3($5.30x+$2.50) = $55.20 x = 3 games