8th Grade Equations Review

One and Two-Step Equations

100

m-2 = -19

x = -17

200

x/3 = -10

x = -30

300

3b+4=19

b = 5

400

m/5 + 2 = -6

m = -40

500

(x - 3)/4 = 5

x = 23

Solving and Graphing One and Two-Step Inequalities

100

Solve.  -2x < 32

x > -16

200

Solve   p + 12 ≤ -28

p ≤ -40

300

DOUBLE POINTS!!!  Solve and Graph

-5y+7 > -23

You get 600pts.

y < 6

400

Solve and graph 

4x − 3 ≥ 33

x ≥ 9

500

Solve and graph.   

m/-5 + 2 > -6

m < 40

Variables on both sides

100

2x+5= 3x

x=5

200

5x+2 = 3x-8

x = -5

300

12x+8 = 3x+62

x=6

400

Solve and graph

5 + 4x ≥ x + 8

x ≥ 1

500

Maria bought 3 notebooks and a pack of pens for $5. If she spent a total of $14, how much did each notebook cost?

Each notebook cost $3

Multi-Step Equations

100

7(x-2)=6x

x=14

200

-(a-12)+4a= 9a

a=2

300

3(x+1)=x+5

x=1

400

DOUBLE POINTS!!! Solve and graph

 4(6 - 8x) < −30 - 5x.

You get 800pts.

x > 2

500

4(2a+3)= -3(a-1)+31

a=2

Types of Solutions

100

Name the three different types of solutions for equations.

One solution, No solution, infinite solutions

200

If after solving the equation you arrive at 5 = -5, what is the type of solution?

No solution

300

Simplify the expression

3n - 7n + 9

-4n + 9

400

If you arrive at 6x+2=6x+2 when solving the equation, what type of solution can you predict this is?

Infinite Solutions

500

Solve.

−(−4x + 7) = −2 + 4x

No Solution