Algebraic Expressions and Equations

Simplifying

100

3n + n + 4

4n + 4

200

4y + 3y + 6n -n + 3 

7y + 5n + 3

300

-7n - 3 + 8y - 4 -y

-7n + 7y -7

400

-n -3 -4n + 5 -m

-5n -m +2

500

-9 - 8y - 7m + 2 - 3y -3m

-11y - 10m -7

Evaluating

100

let y= 3

3y + 2

11

200

let y= -9

-4y + -2y + 5

59

300

let y= -25

y/-5 - 6

-1

400

let x= 8 and y=2

x-3 / y

2.5

500

let x= -3 and y=-3

x - y + 2

2

Expanding/Factoring

100

Expand: 2(-4y + 2)

-8y + 2

200

Factor: 8y - 32

8(y - 4)

300

Factor: -12 - 42n

-6(2+7n)

400

Expand: -3(-4y - 2x + y)

9y + 6x 

500

Expand: -8(3y - 2y + 1) - 3(4y -3)

-24y+16y-8 -12y +9

-20y +1

One/Two Step Equations

100

y - 9 = 18

y = 27

200

-3y = 39

y = -13

300

8y - 5 = 43

y = 6

400

y / 8 - 4 = 6

y = 80

500

y - 4 / 5 = 25

129

Multistep Equations

100

8y + 3 = -4y

y = -3/12 or -1/4 or -0.25

200

7y + 3 = 8y - 4

y = 7

300

-8y - 4 = 2(8y - 3) 

y = 2/24 or 1/12 

400

3(2y−5)+4=2(y+6)+10

y = 33/4 or y= 8.25

500

5(3y−4)−2(y+7)=3(2y+5)+4

y = 53/7