Equations

Vocabulary

100

A symbol (a letter) that represents one or more numbers.

Variable 

200

A mathematical phrase with at least one letter.  

Algebraic expression

300

Terms that have the same variable factors. 

Like terms 

400

A numerical factor of a term with a variable.

Coefficient 

500

Opposite operations

Inverse operations 

Writing Expressions

100

6 less than d dollars 

d-6

200

p decressed by 16 

P-16

300

12 times b boxes 

12b 

400

the sum of s students and 9 students

s+9 or 9+s 

500

20 hours of work divided equally among w workers 

20/w

1 step equations

100

solve the equation

x-22= -15

x=7

200

solve the equation 

d+261.9= -48

x=-309.9

300

solve the equation

m/-2 = 12 x 2

m=24

400

solve the equation

22=6+c

c=16

500

solve the equation

t-58=71

t=129

2 step equation

100

solve the 2 step equation

3n - 4 = 14

n=6

200

solve the equation

7=4-2y

y= -1.5

300

solve the equation

5+x/6=13

x=48

400

solve the equation

8x+5=56

X=7

500

solve the equation

2x+5=21

X=8

Distributive Property

100

solve the equation

4(d-1.5)=-8

X=1/2

200

solve the equation

2(x+3.5)=17

X=5

300

solve the equation 

-5(x+9)= -5

x= -8

400

solve the equation

4(x-8)=12

x=11

500

solve the equation

6(6v+6)-5=1

v= -30