To Flip or Not to Flip

Would we flip the inequality sign after finding the solution?

-3x < -9

• Yes...we need to Flip

• No...we won't flip the < to a >

Answer explanation

Remember to look for a negative variable term...if you start with one you will need to flip the inequality sign and point the alligator mouth the opposite direction. We did need to flip this time because we started with a variable term of

-3x

....the solution is

x > 3

Tags

CCSS.6.EE.B.8

• Yes...flip it!

• No

Tags

CCSS.7.EE.B.4B

• Yes...flip it!

• No

Answer explanation

I saw the equal sign too...but it was to the right of the variable term...we only flip if the negative sign is to the left.

Tags

CCSS.7.EE.B.4B

• Yes...flip it!

• No

Tags

CCSS.7.EE.B.4B

• Yes...flip it!

• No

Answer explanation

Yes...the negative is directly to the left of the 3x

Tags

CCSS.7.EE.B.4B

• Yes...flip it!

• No

Answer explanation

Not this time ... the negative sign is near by, but the 3x is a positive term.

Tags

CCSS.7.EE.B.4B

Tags

CCSS.7.EE.B.4B

Tags

CCSS.7.EE.B.4B

Tags

CCSS.7.EE.B.4B

Answer explanation

So the solution first looks like this....because we had to flip...

4 > x

...then we moved the x to the left...but need to keep the alligator mouth opening towards the 4. Final answer is

x < 4

Tags

CCSS.7.EE.B.4B