Expressions and Equations

Vocabulary

100

This type of math problem has no equal sign.

Expression

200

This type of math problem has an equal sign.

Equation

300

What are the terms in this expression?

3x -2 + 2y

3x, 2, 2y

400

Another word for the letters used in expressions and equations.

Variable

500

Which is the coefficient? 

2x+ 5

2

Simplify Expressions

100

-4(3x - 1)

-12x + 4

200

10x + 7 - 4x + 15

6x + 22

300

-5 - 2(6x +1) - 2x

-14x - 7

400

2(3x - 4) + 7x

13x - 8

500

Simplify: ( combine like terms)

9 + 7x - (3x-4) + 12x

16x + 13

Evaluate

100

Evaluate if X= 2

2x + 1 

5

200

Evaluate if x = 5:

-3x - 4 + 2x 

-9

300

Evaluate for x = 3 and y = -1

3x - 2y

11

400

Evaluate for x = -2 and y = 4

3(2x - y) + x²

-20

500

Evaluate for x = -3 and y = 2

2x² + 4y - 6

20

Solve

100

3x - 2 = 10

x = 4

200

2(3x - 9) = 4

x = 11/3 or 3 2/3

300

2x - 4 + 3(x - 1) = 18

x = 5

400

5(x + 1) - 2(3x - 4) = 14

x = -1

500

8 - 3(2x - 5) = 4(x+2)

x = 1.5

Mixed Review

100

What is a constant in the expression?

2x+8

8

200

A shirt is reguarly priced at $29.99 and on sale for 20% off. What is the new price of the shirt?

$23.99

300

Turn 8% into a decimal

.08

400

What is the unit rate of 195 peanuts for 15 bags?

13 peanuts/bag

500

Who did #87 for the Kansas City Chiefs propose to?

Taylor Swift