Algebra Review

Creating Expressions

100

Make an expression: a number plus 5

n + 5

200

Make an expression: 6 minus a number

6 - n

300

Make an expression that is the opposite of multiplying n x 16

n/16

400

Make an expression: the product of n and 7

n x 7

or 7n

500

Make an expression: The sum of two numbers and 7

p + n + 7

(any 2 variables are acceptable)

Miscellaneous

100

This is used to represent an "unknown" in algebra

What is a "variable"

200

A number that is multiplied to a variable

What is a coefficient?

300

What does an equation have that an expression doesn't?

an equals (=) sign...."an answer" can also be accepted

400

A number on it's own

What is a constant?

500

Terms with the identical variables

What are Like Terms?

Solving for a Variable

100

x + 3 = 7

x = 4

200

p - 15 = 4

p=19

300

g + 123 = 178

g = 55

400

n + 432 = 562

n = 130

500

n - 1,231 = 5,112

n = 6,343

Solving for a Variable 2

100

p x 3 = 21

p = 7

200

g x 5 = 70

g = 14

300

n ÷ 64 = 8

n = 8

400

n ÷ 8 = 546

n = 4,368

500

p x 18 = 288

p = 16

Like Terms

100

What are the like terms in the expression? 

 3x²+ 11x + 14x

11x and 14x

200

What are the like terms in the expression? 

6x³+ 7x² + 12x³

6x³ and 12x³

300

Simplify.  4y - 2y + 3x

2y + 3x

400

5w - 10x + 3x - 2w

3w - 7x

500

What are the like terms in the expression? 5x-7y+23x

5x and 23x