# Math

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5-(3)<10(-3)=
3<2x+1<9=
13<3x+5<29=
12<-4y+8<16=
5>x+2>-7=
5<2-x<7=

• Math -

Deal 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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