Algebra Unit Review

Writing algebraic expressions

100

three more than twice a number

2n+3

200

The quotient of a number and five is four.

n/5=4

300

three times the sum of a number and six

3(n+6)

400

8 less than a number

n-8

500

twice the difference of a number and seven is 18.

2(n-7)=18

Evaluating Algebraic Expressions

100

Evaluate when x = -3 and y = 4.

xy

-12

200

Evaluate when x = -3 and y = 4.

3x - y

-13

300

Evaluate when x = -3 and y = 4.

y - x

7

400

Evaluate when x = -3 and y = 4.

2y - 3x

17

500

Evaluate when x = -3 and y = 4.

xy + 3x - y

-25

Simplifying Algebraic Expressions

100

Simplify.

3x - 4y + 5x

8x - 4y

200

Simplify.

5a + 3a - 4a + 7

4a + 7

300

Simplify.

5x² - 7x - 2x² + 10x

3x² + 3x

400

Simplify.

4(x - 6) - 3x

x - 24

500

5a - 2(a + 3) + 7

3a + 1

One-step Equations

100

Solve.

x + 7 = -12

x = -19

200

Solve.

-14 = x - 9

x = -5

300

Solve.

6a = -30

a = -5

400

Solve.

x/6 = -8

x = -48

500

3x - 7x + 2x = 18

x = -9

Two - step Equations

100

Solve.

2x - 8 = -14

x = -3

200

Solve.

x/6 - 4 = -2

x = 12

300

3(x - 2) = -21

x = -5

400

2(x + 7) - x = 5

x = -9

500

-3(x - 4) - 2x + 1 = -3 - 4

x = 4