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December 20, 2014

December 20, 2014

Posted by **Lori** on Monday, February 22, 2010 at 12:47pm.

5-(3)<10(-3)=

3<2x+1<9=

13<3x+5<29=

12<-4y+8<16=

5>x+2>-7=

5<2-x<7=

PLEASE HELP DUE A.S.A.P. THANK YOU.

- Math -
**PsyDAG**, Tuesday, February 23, 2010 at 12:23pmDeal with inequalities just like equations, except that you reverse the carats when multiplying or dividing by a negative number.

Is there a typo in the first inequality?

5-(3) < 10(-3)

2 < -30 (That certainly is not true. Think of it in terms of money. Having $2 is not less than owing $30.)

3 < 2x+1 < 9

Subtract 1 from each part.

2 < 2x < 8

Divide each part by 2.

1 < x < 4

Use these principles in the remaining problems.

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