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Big Ideas Math Integrated I, 2016
BI
Big Ideas Math Integrated I, 2016 View details
2. Solving Inequalities Using Addition or Subtraction
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Exercise 46 Page 66

How can you undo division?

n=- 29.2

Practice makes perfect

To solve the equation, we will isolate the variable. To undo the division in the given equation, we will use the Multiplication Property of Equality to multiply both sides of the equation by 4.

n/4=-7.3
MultEqn

LHS * (4)=RHS* (4)

n/4*4=-7.3*4
FracMultDenomToNumber

a/(4)* (4) = a

n=-7.3*4
Multiply

Multiply

n=- 29.2

We will check our solution by substituting this result back into the original equation and simplifying.

n/4=-7.3
Substitute

n= -29.2

\dfrac{{\color{#0000FF}{\text{-}29.2}}}{4}\stackrel{?}=\text{-}7.3
CalcQuot

Calculate quotient

- 7.3=- 7.3 ✓

Since substituting n=-29.2 resulted in a true statement, our solution is correct.

Subchapter links expand_more
arrow_right Communicate Your Answer p.61
3
Communicate Your Answer 4 (Page 61)
arrow_right Monitoring Progress p.62-64
Monitoring Progress 1 (Page 62)
Monitoring Progress 2 (Page 62)
Monitoring Progress 3 (Page 62)
Monitoring Progress 4 (Page 63)
Monitoring Progress 5 (Page 63)
Monitoring Progress 6 (Page 63)
Monitoring Progress 7 (Page 64)
arrow_right Exercises p.65-66
Exercises 1 (Page 65)
Exercises 2 (Page 65)
Exercises 3 (Page 65)
Exercises 4 (Page 65)
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Exercises 30 (Page 66)
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Exercises 46 (Page 66)