Inequalities Flip or Not

For which of these would you need to flip the inequality symbol when solving?

• x - 5 > 8

• x + 5 < -100

• -3x > -24

• 5x < -10

Tags

CCSS.6.EE.B.8

x + 8 < 13

• x < 5

• x > 5

Tags

CCSS.7.EE.B.4B

-3x < 12

• FLIP

• Nah!

Tags

CCSS.6.EE.B.8

-4 ≤ -4m

• FLIP

• Nah!

Tags

CCSS.6.EE.B.8

-⅖x ≥ -10

• FLIP

• Nah!

Tags

CCSS.6.EE.B.8

What do you look at to know when to flip the sign?

• inequality symbol

• if the answer is negative

• the number with the variable

Tags

CCSS.6.EE.B.8

Divide by a negative

• Flip

• Nah!

Tags

CCSS.7.NS.A.2B

CCSS.7.NS.A.2A

-5x + 12 > 35

• Flip

• Nah!

Tags

CCSS.7.EE.B.4B

-3(2x + 5) > 15

• FLIP

• Nah!

Tags

CCSS.7.EE.B.4B

3x + 4 - 5x > -9

• FLIP

• Nah!