Pre-Algebra Review

Fun with Equations

100

Solve: 2x + 2 = 18

x = 8

200

Solve: 3x + 4 = 7

x = 1

300

Solve: 3x + 3 - 2x = 21

x = 18

400

Solve: 4x - 5 - 3x + 2 - 2x = 9

x = -12

500

Solve: 0 = -2(x - 12) + 42

x = 33

Pot Luck

100

 Wally is 3 times older than Debbie, minus 2 years.  Wally is 43 years old.  How old is Debbie?

15

200

Algebra: simplify: 3(2wd3 - 3) + wd3 

Algebra: 21dw - 9 

300

Algebra: Solve for a: ax + b = c 

Algebra: a = (c - b)/x 

400

Simplify: a(b - c) - 2a(c + b)

-1ab - 3ac

500

x/7 = -7/2

-24 1/2

More Pot Luck

100

A soccer team played 12 games and won 5 times as many games as it lost.  How many games did the soccer team win?

10

200

What property is shown: 7 + x = x + 7

Commutative Property of Addition

300

Solve: (3x-5)/4 = 5

x = 25/3

400

Simplify: -4(3x - 2) -2(4 + 3x)

-18x

500

A rectangular movie screen is to have a perimeter of 140 ft.  If the length is to be 30 ft more than the width, what is the width?

20 ft

Are you kidding...Still More Pot Luck

100

A certain number is 4 less than 3 times another, and their sum is 16.  Find both numbers.

5 and 11

200

Solve:  5x - 8x + 10x - 10 = 11

 x = 3

300

Solve: (3 - 3x)/7 = 6

x = -13

400

Simplify: 22p - 7p + 19 - 15 - 12

15p - 8

500

There is a line segment with two endpoints (1,1) and (9,10). What is the domain?

[1,9]

Slope

100

Find the slope from the two points (1,5) and (4, 7)

2/3

200

Find the slope of the two points (0,0) and (8,4)

1/2

300

Find the slope of the two points (2, 3) and (-4, 6)

-1/2

400

What is the slope of the equation : y = 2.3x - 4

2.3

500

What is the slope of the line : y = 3x + 14 - x

2