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OpenStudy (anonymous):
Solve the system x - y = 3 and 3x - 8y = 9. What is the value of y? A. 3 B. 0 C. 6 D. -2
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OpenStudy (goformit100):
B. 0
OpenStudy (anonymous):
thanks (:
OpenStudy (callisto):
x - y = 3 - (1) 3x - 8y = 9 - (2) (1) x 3 - (2) 3(x - y) - (3x - 8y) = 3x3 -9 -3y + 8y = 0 5y = 0 y = 0
OpenStudy (goformit100):
yes i was correct
OpenStudy (anonymous):
thanks guys (:
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