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Big Ideas Math Integrated I, 2016

BI

Big Ideas Math Integrated I, 2016 View details

Chapter Review

Finish the assignment

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Exercise 6 Page 44

Combine like terms, then isolate n.

n=6

Practice makes perfect

We can solve the equation by combining like terms and then isolating n.

n+5n+7=43

Add terms

6n+7=43

LHS-7=RHS-7

6n+7-7=43-7

Subtract terms

6n=36

.LHS /6.=.RHS /6.

6n/6=36/6

Calculate quotient

n=6

Let's check our solution by substituting n=6 into the original equation.

n+5n+7=43

n= 6

6+5( 6)+7? =43

▼

Simplify LHS

Multiply

6+30+7? =43

Add terms

43=43 ✓

Since the left-hand side and right-hand side are equal, we know the solution is correct.

Subchapter links

1 Solving Simple Equations p.44

2 Solving Multi-Step Equations p.44

3 Solving Equations with Variables on Both Sides p.45

4 Solving Absolute Value Equations p.45

5 Rewriting Equations and Formulas p.46