  PRE-ALGEBRA
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CALCULUS    California Algebra 1, 2008 PAGE: 263 SET: Exercises PROBLEM: 1
Please look in your text book for this problem Statement   The equations are and . Equation (1) Equation (2)

Since , substitute for x in the first equation.  (Apply distributive property: ) (Multiply: ) (Add: ) According to subtractionn property of equality: Subtract 2 from each side.  (Apply commutative property of addition: ) (Apply additive inverse property: ) (Apply additive identity property: ) (Subtract: ) (Multiply each side by negative one) (Product of two same signs is positive) Now, find the x value by substituting in Equation 2.  (Product of two same signs is positive) (Add: ) The solution is . TESTIMONIALS
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