Solve One-Step Inequalities by Add and Subtract

Graph the solution: x > 4

• Closed dot on 4; shaded to the right

• Open dot on 4; shaded to the right

• Closed dot on 4; shaded to the left

• Open dot on 4; shaded to the left

Graph the solution: x < -8

• Closed dot on -8; shaded to the right

• Open dot on -8; shaded to the right

• Closed dot on -8; shaded to the left

• Open dot on -8; shaded to the left

• Open dot on 10; shaded to the right

• Open dot on 10; shaded to the left

• Closed dot on 10; shaded to the right

• Closed dot on 10; shaded to the left

• Open dot on -7; shaded to the right

• Closed dot on -7; shaded to the right

• Open dot on -7; shaded to the left

• Closed dot on -7; shaded to the left

Solve: 10 < b - 8

• -18 > b

• 18 < b

• b < -18

• b > 10

-21 < a - 16

• 5 > a

• a > -21

• -5 < a

• a < 5

What inequality represents the following statement:

Eight less than a number is less than 10

• 8 < n - 10

• n - 8 < 10

• 8 - n < 10

• 10 - n < 8

• y > 7

• y > -19

What inequality represents the following statement:

Four more than a number is more than 13.

• 13 > n + 4

• n + 13 > 4

• 4 > n + 13

• n + 4 > 13