Review of Algebra Variables

The opposite operation

• Divide

• Absolute

• Inverse

• Reciprocal

If x = 5,find the value of 7x - 1

• 34

• 36

• 35

Solve 14 - cd when c = 2 and d = 7

• 0

• 28

• 16

• 23

5 times d and then increased by 8

• 5d + 8

• 5 + 8d

• 5 + 8 + d

• 5d-8

Which words could be used to describe the following expression? 6h

• addition

• subtraction

• multiplication

• division

The sum of n and 6

• n/6

• n X 6

• n + 6

• n - 6

A variable is . . .

• an awesome number

• a number represented by a letter

• an infinite number

• a number multiplied by another number

5p + 4h - 2
Which are the variables? 

• 5p, 4h, 2

• 2

• p, h

• 5, 4

Evaluate when a = 15:
2(a - 5) + 2

• 22

• 27

• 14

• 7

2x + 3 + x²; for x = 4

• 17

• 27

• 19

• 25