8th Grade Math Review

Number of Solutions

100

2x+3=4x+4

One Solution

No Solution

Infinite Solutions

One Solution

200

2x+4=4x+4-2x

One Solution

No Solution

Infinite Solutions

Infinite Solutions

300

8x+7-6x+4=2x+3

One Solution

No Solutions

Infinite Solutions

No Solution

400

2(x+7)=x(2+7)

No Solution

One Solution

Infinite Solutions

One Solution

500

4x+7-2+5x+12=9x+17

One Solution

No Solutions

Infinite Solutions

Infinite Solutions

Exponent Rules

100

2³x2^-3

1

200

8⁴/8^-5

1/8

300

(7²)³

7⁶

400

2³/2¹

2²

500

(7⁶)^-5

1/7³⁰

Find the Slope

100

(2,3)(7,-9)

-12/5

200

(8,6)(-2,-5)

11/10

300

 (6,5)(-4,-9)

7/5

400

(-4,5)(4,1)

-1/2

500

(0,-7)(1,-11)

-4

Equationss

100

v-15=-27

-12

200

8x+7=31

3

300

-10=10(x-9)

8

400

6x+5x=-11

-1

500

-3(x+4)=2x-37

5

Systems of Equations

100

y=2x-1

y=-x+5

(2,3)

200

3x+2y=13

x-2y=3

(4,1/2)

300

2x+3y=21

x+y=3

(-12,15)

400

4x-y=10

2x=12-3y

(3,2)

500

x-2y=-7

x-y=-4

(-1,3)