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Big Ideas Math Algebra 2, 2014

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Big Ideas Math Algebra 2, 2014 View details

Maintaining Mathematical Proficiency

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Exercise 6 Page 407

Gather all of the variable terms on one side of the equation and all of the constant terms on the other side.

$x = 66$

Practice makes perfect

To solve an equation, we should first gather all of the variable terms on one side of the equation and all of the constant terms on the other side, using the Properties of Equality. In this case, we need to start by using the Division Property to simplify the left- and right-hand sides of the equation.

216 = 3 (x + 6)

$LHS / 3 = RHS / 3$

72 = x + 6

$LHS - 6 = RHS - 6$

66 = x

Rearrange equation

x = 66

The solution to the equation is

x = 66 .

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Exercises p.407