Notes Over 1.5Write the phrase as a variable expression. Let x represent the number.

11. The sum of 1 and a numbersum

add

x

2. 4 less than a number lesssubt

than

xswitch

4

Notes Over 1.5Write the phrase as a variable expression. Let x represent the number.

123. 12 minus a number

x

4. A number plus 8

x

8

Notes Over 1.5Write the phrase as a variable expression. Let x represent the number.

x

5. A number increased by 6increasedadd

x

6. The difference between a number and 10difference

6

subtract

10

Notes Over 1.5

n

7. The product of 3 and a numberproductmultiply

Write the phrase as a variable expression. Let n represent the number.

3

4n

8. The quotient of a number and 4quotientdivide

fraction

Notes Over 1.5

n9. 12 multiplied by a number

Write the phrase as a variable expression. Let n represent the number.

12

n1

2

10. One half of a numberofmult

11. 9 divided by a number

n9

Notes Over 1.5

612. A number plus 6 is 15.

Translate each sentence into mathematical symbols. Then use mental math to solve your equation. Let x represent your number.

n

4n

13. A quotient of a number and 4 is 7.quotientdivide

fraction

15n 9

7

n 28

Notes Over 1.5

814. A number increased by 8 is 15.

Translate each sentence into mathematical symbols. Then use mental math to solve your equation. Let x represent your number.

n

3n15. A number multiplied by 3 is 33.

15n 7

33n 11

Notes Over 1.5