Algebra A12E

5w=75

n/32 = 14

-18 = r/-4

7 less than a number d

• 7 - d

• d - 7

The sum of 6 and x

• x + 6

• 6/x

• x + 4

• 6x

7g + 5 + 6g  - 3

• 13g - 3

• 12g + 5

• 13g + 2

• 13g - 2

4(-p - 6)

• 4p - 24

• 4p + 24

• -4p + 24

• -4p - 24

take 10 away from s 

• 10 - s 

• s + 10

• s - 10

• s/10

A symbol for an unknown value is called a _______________. It is usually a letter such as a, X or Y.

• Constant

• Coefficient

• Operator

• Variable

There are 12 packets of crisps in a big pack.

I buy n big packs of crisps

How many packets of crisps have I bought?

• 12 + n

• n - 12

• 12n

• 12/1