Solving Equations with Variables

Terms

100

says that two things are equal

equation 

200

a symbol for a number we don't know yet

Variable

300

operation 

-, +, X, /

400

a number used to multiply a variable 

Coefficient

500

A ___ is either a single number or a variable, or numbers and variables multiplied together

Term 

Graphing Inequalities

100

x > 6

empty circle on 6, numbers greater than

200

x < 5

empty circle on 5, numbers less than

300

x >=9

filled circle on 9, numbers greater than

400

6 < x > 10

empty circle on 10, numbers greater than

500

2x > 8

empty circle on 4, numbers greater than

Vocabulary

100

What is the variable in this equation:

2x+5=10

x

200

What is the coefficient in this equation:

2x+5=10

2

300

Define equation

A math sentence stating two expressions are equal; ex. 2x=10

400

Define expression

A number sentence that is not equal:

ex. 5 > p

500

What is the term (or terms)in this equation:

2x+5=10

2x, 5, 10

Solving by Add/Subt

100

x+5=8

x=3

200

r-7=5

r=12

300

14=t+8

t=6

400

30=v+12

v=18

500

w-23=12

w=35

Solving by Mult/Div

100

3x=18

x=6

200

14=7g

g=2

300

x/3=5

x=15

400

g/3=8

g=24

500

y/4=-15

y=-60