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McGraw Hill Glencoe Algebra 1, 2012

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McGraw Hill Glencoe Algebra 1, 2012 View details

1. Solving Inequalities by Addition and Subtraction

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Exercise 81 Page 290

Use the Division Property of Equality to eliminate the multiplication.

x=- 1/9

Practice makes perfect

To solve the equation, we have to isolate x on one side. Using the Division Property of Equality, we will divide both sides of the equation by - 6. This will eliminate the factor - 6 and isolate x.

- 6x=2/3

.LHS /(- 6).=.RHS /(- 6).

x=.2/3 /(- 6).

▼

Simplify right-hand side

.a/b /c.= a/b* c

x=2/3(- 6)

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

x=1/3(- 3)

a(- b)=- a * b

x=1/- 9

MoveNegDenomToFrac

Put minus sign in front of fraction

x=-1/9

The solution to the equation is x=- 19.

Subchapter links

Check Your Understanding p.288

H.O.T. Problems p.289

Standardized Test Practice p.290

Spiral Review p.290

Skills Review p.290