  PRE-ALGEBRA
ALGEBRA 1
GEOMETRY
ALGEBRA 2
TRIGONOMETRY
PRE-CALCULUS
CALCULUS    Texas Algebra 1, 2007 PAGE: 278 SET: Exercises PROBLEM: 37
Please look in your text book for this problem Statement    Elimination Method:

The equations are Equation (1) Equation (2)

Since the coefficients of y-terms are additive inverses, these terms can be elimanted by adding equations. Write the equations in column form and add the corresponding columns.  According to division property of equality: Divide each side by 2.  (Cancel common terms)

Now, find the y value by substituting in either equation. (Equation 1)  According to subtraction property of equality: Subtract 2 from each side.  (Apply commutative property of addition: ) (Apply additive inverse property: ) (Apply additive identity property: ) (Subtract: ) The solution is . TESTIMONIALS
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