4.7 Writing One-Step Algebraic Expressions

The sum of a number, x and 5

• x + 5

• x - 5

• 5x

• x/5

The difference of a number, x and 6

• x + 6

• x - 6

• 6 - x

• x/6

The product of a number, x and eight

• x + 8

• x - 8

• 8x

• 8/x

The quotient of a number, x and 12

• x + 12

• x - 12

• 12/x

• x/12

Five less than a number, x

• x + 5

• x - 5

• 5 - x

• x/5

Ten divided by a number, x

• x + 10

• 10 - x

• 10/x

• x/10

A number, x increased by two

• x + 2

• x - 2

• 2x

• x/2

A number, x decreased by ten

• x + 10

• x - 10

• 10x

• x/10

6 times a number, x

• x + 6

• x - 6

• 6x

• 6/x

9 plus a number, n

• n - 9

• 9/n

• 9 + n

• 9 × n