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McGraw Hill Glencoe Algebra 2, 2012 View details

3. Solving Equations

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Exercise 31 Page 22

Knowing a value of expression, we can replace this expression with its value in other equations.

Substitution Property of Equality.

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To identify the property of equality being demonstrated by the given equations, we should first identify the format of the equations. Ify=-3, then 7y=7(-3)In this case, we are given two equations. y = -3 7 y= 7( -3) This demonstrates the Substitution Property of Equality. a = b ⇒ c a = c b

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Check Your Understanding p.22

Practice and Problem Solving p.22-24

H.O.T. Problems p.24

Standardized Test Practice p.25

Spiral Review p.25

Skills Review p.25

Exercise 31 Page 22

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