Math Equation

Basic Equations

100

3 x = 7 + 14

x = 7

200

7 • 8 = x - 4

x = 60

300

78 - 28 = 10 x

x = 5

400

x + 12 = 9 • 3

x = 15

500

6 x = 25 + 20 + 9

x = 9

One- Step Equations

100

25 = y + 20

y = 5

200

14 = x + 1

x = 3

300

2 = e - 9

e = 11

400

18 = c + 5

c = 13

500

g -- 21 = 6

g = 27

Two-Step Equations

100

3a -- 4 = - 13

a = -3

200

8g - 12 = 60

g = 9

300

3e + 5 = -16

e = -7

400

2m - 9 = -13

m = -2

500

2 = r/-3 = 9

r = -21

True or Not True

100

a – 6 = 4 , a = 10

true

200

8z = 48 , z = 7

Not true

300

24 / y = 4 , y = 8

Not true

Y=6

400

d/6=3 ,d=18

True

500

x + x + 7 = 16 , x = 4

  Not True

Expressions & Equation Vocabulary

100

A letter or symbol to represent an unknown number.

Variable 

200

A single number, variable, or number and variable

within an algebraic expression or equation.

Term

300

At least one number and variable with at least one

mathematical operation.

Expression 

400

The answer from a subtraction operation.

Difference 

500

The numerical factor of a term.

Coefficient