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McGraw Hill Glencoe Algebra 1, 2012

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McGraw Hill Glencoe Algebra 1, 2012 View details

7. Inverse Linear Functions

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Exercise 61 Page 270

Use the Properties of Equality to isolate the variable.

n=100

Practice makes perfect

To solve the equation, we have to isolate n on one side. First, we will use the Subtraction Property of Equality.

- 82=18-n

LHS-18=RHS-18

- 82-18=18-n-18

CommutativePropAdd

Commutative Property of Addition

- 82-18=18-18-n

Subtract terms

- 100=- n

Rearrange equation

- n=- 100

Now, we will use the Multiplication Property of Equality.

- n=- 100

LHS * (- 1)=RHS* (- 1)

- n* (- 1)=- 100* (- 1)

MultNegNegOnePar

- a(- b)=a* b

n=100

n=100 is the solution to the equation.

Subchapter links

Check Your Understanding p.267

Practice and Problem Solving p.267-269

H.O.T. Problems p.269

Standardized Test Practice p.270

Spiral Review p.270

Skills Review p.270