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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

1. Solving One-Step Equations

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Exercise 63 Page 86

How can we isolate m on the left-hand side?

m=0.8

Practice makes perfect

To solve the equation, we have to isolate m on one side of the equation. By multiplying both sides of the equation by 10, and then dividing by 16, we can remove the coefficient from m.

1.6m=1.28

LHS * 10=RHS* 10

16m=12.8

.LHS /16.=.RHS /16.

m=12.8/16

Calculate quotient

m=0.8

To check that we have the correct solution, we can substitute m=0.8 into the original equation.

1.6m? =1.28

m= 0.8

1.6* 0.8? =1.28

Multiply

1.28=1.28

Since both sides are equal, we can conclude that m=0.8 is the correct solution.

Subchapter links

Lesson Check p.85

Practice and Problem-Solving Exercises p.85-87

Standardized Test Prep p.87

Mixed Review p.87