Algebra Review!

Vocabulary

100

A letter used to represent a number is called a

variable

200

When each side of an equation is changed in the same way, the values remain equal. 

Preservation of equality

300

If two expressions have the same value, the whole statement is an

equation

400

A number that is not attached to a variable

Constant

500

A number attached to a variable.

Coefficient 

Write Expressions

100

Write the expression: Add 4 to x

x + 4

200

Write the expression 5 multiplied by X

5(X) 

300

Write the expression: Divide x by 2

x/2

400

Sally brought stickers to give to 14 of her friends. Write an expression to show how many she brought to school where X = the number of friends she gave stickers to. 

14(X) 

500

Rob played two basketball games. He scored 6 fewer points in the second game than the first. Write an expression to show how many points he scored in the first game. 

X - 6

Evaluate Expressions

100

Evaluate y + 2 when y=9

11

200

Evaluate 18/y when y = 9

2

300

Evaluate the expression 5y + 5 when y = 9

50

400

Evaluate the expression 3(4-X) when X = 6

-6

500

Andy has 3r - 3 baseball cards. Micah has 2r + 5 baseball cards. a. If r = 14, who has more cards? How many cards does this person have?  (Andy or Micah?) 

a. Andy has 39 cards

One Step Equations

100

X - 17 = 25

X=42

200

X + 26 = -53

X = -79

300

5p = 25

p = 5

400

4X = -8

x = -2

500

X / 9 = -4

x =-36

Two Step Equations

100

Solve for X

3x - 4 = 8

X = 4

200

Solve for p 

10p - 4 = 26

p = 3

300

(x/4) + 7 = 31

96

400

Solve for n 

10n + 6 = 35 - 9

n = 2

500

At a parade, there are m women and 3 times as many men as women. There are 6,352 fewer children than men. There are 43,663 people at the parade. How many women are there. 

12,437 women