Framing/Solving One and Two Step Inequalities Challenging

• 145

• 165

• 180

• 190

-4x + 1 > 21

• x > -5

• x < -5

• x > -80

• x < -80

Do I need to flip my sign?
-3x  ≥ 12

• Yes, because I'll be dividing by a negative number

• No, because you never flip the sign. 

Solve for k.
2k - 9≤ -19

• k ≤ -5

• k ≤ 5

• k < -5

• k < 5

Solve for u. 
u/7 – 1 ≤ 1

• 14≥u

• 14≤u

• u≤14

• u ≤ -14

s + 9 ≥ -25

• s ≥ -18

• s ≥ -34

• s ≤ 18

• s ≥ 34

Solve: -2x ≤ 14

• x ≤ 7

• x ≤ -7

• x ≥ 7

• x ≥ -7

You flip an inequality symbol when you...

• subtract

• multiply and divide only

• multiple by a negative number

• multiple or divide by a negative number

-9a - 1 < 26

• a<-3

• a<3

• a>-3

• a>3

What would be the first step in solving the inequality for 2x+7>15?

• Add 7 to both sides

• Subtract 7 from both sides

• Divide both sides by 2

• Multiply both sides by 2