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McGraw Hill Integrated II, 2012 View details

6. Surface Areas and Volumes of Spheres

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Exercise 50 Page 855

What can you do to isolate a variable in an inequality?

A

Practice makes perfect

Inequalities can be solved in the same way as equations, by performing inverse operations on both sides until the variable is isolated. The only difference is that when you divide or multiply by a negative number, you must reverse the inequality sign.

3z+4<6+7z

SubIneq

LHS-3z

4<6+4z

SubIneq

LHS-6

- 2<4z

DivIneq

.LHS /4.<.RHS /4.

- 2/4

ReduceFrac

a/b=.a /2./.b /2.