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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

2. Solving Inequalities Using Addition or Subtraction

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Exercise 60 Page 175

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

v>-3/16

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.

5/8+v-7/16>0

a/b=a * 2/b * 2

10/16+v-7/16>0

Add fractions

3/16+v>0

LHS-3/16>RHS-3/16

v>-3/16

The above tells us that all values greater than - 316 will satisfy the inequality.

Subchapter links

Lesson Check p.174

Practice and Problem-Solving Exercises p.174-177

Standardized Test Prep p.177

Mixed Review p.177