sat suite question viewer
Algebra
/ Linear equations in two variables
Difficulty: Easy
The equation gives the relationship between the side lengths and of a certain parallelogram. If , what is the value of ?
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Explanation
The correct answer is . It's given that the equation gives the relationship between the side lengths and of a certain parallelogram. Substituting for in the given equation yields , or . Subtracting from both sides of this equation yields . Dividing both sides of this equation by yields . Therefore, if , the value of is .