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Writing An Expression
Evaluating An Expression
Collecting Like Terms
Solving A One Step Equation
Solving A Multi-Step Equation
100

A number decreased by twenty.

n-20

100

n - 12, if n=20

8

100

5x + 7x

12x

100

8n = 56

n=7

100

3x + 4 = 10

x=2

200

The quotient of ten and a number

10/n

200

-3n, if n= -5

15

200

3y - 5 + 8

3y+3

200

n - 12 = 20

n=32

200

4n - 20 = 8

n=7

300

Double a number, then increased by five

2n+5

300

50/n , if n= -2

-25

300

4m - 4 - 8m + 5

-4m + 1

300

n/6 = 12

n=72

300

-3x + 10 = -11

x=7

400

The sum of a number and seven, then multiplied by ten.

10 (n+7)

400

2n - 7, if n=3

-1

400

2x + 3y -4x + 9y

-2x + 12y

400

y - 4 = -12

y= -8

400

2x -1 - x = 5

x=6

500

Three times the quotient of a number and eight.

3n/8

500

n2 - 5, if n=10

95

500

x2 + 3x - 4 + 5x + 7

x2 +8x +3

500

-9x = -36

x = 4

500

9y + 3 - 7y - 5 = 8

y=5