Unformatted text preview: How could you use substitution to find the number of adults who attended the game? • CORRECT: Substitute 2 a for c in the equation a + c = 42. 4. Which of the following steps uses the elimination method to first solve this system for y ? • CORRECT: Multiply both sides of the equation 9 x + 4 y = 20 by –2 and then add. 5. How could you solve this system by substitution? • CORRECT: Substitute 6 for d into the equation 3 c + 5 d = 2. You got 5 out of 5 correct....
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 Spring '10
 gonzalez
 Algebra, Englishlanguage films, Quiz Linear Systems

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