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Big Ideas Math: Modeling Real Life, Grade 7

BI

Big Ideas Math: Modeling Real Life, Grade 7 View details

Chapter Review

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Exercise 34 Page 174

Substitute - 2 into the given inequality and then simplify.

Yes, see solution.

Practice makes perfect

We can determine whether p= - 2 is a solution by substituting it into the inequality and simplifying using the order of operations.

7p≥ p-12

p= - 2

7( - 2) ? ≥ - 2-12

a(- b)=- a * b

-7( 2) ? ≥ - 2-12

Multiply

- 14 ? ≥ - 2-12

Subtract term

- 14 ≥ - 14 ✓

Since - 14 is greater than or equal to - 14, this means that p= - 2 is a solution.

Subchapter links

1 Solving Equations Using Addition or Subtraction p.173

2 Solving Equations Using Multiplication or Division p.173

3 Solving Two-Step Equations p.174

4 Writing and Graphing Inequalities p.174

5 Solving Inequalities Using Addition or Subtraction p.174-175

6 Solving Inequalities Using Multiplication or Division p.175

7 Solving Two-Step Inequalities p.175