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OpenStudy (anonymous):
What is a possible first step to eliminate the variable y in the following system? 4x + 6y = 1 5x – 3y = 8 Multiply the first equation by 5. Multiply the first equation by –2. Multiply the second equation by 2. Multiply the second equation by –3.
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OpenStudy (precal):
hint: 6y and -3y (?)times -3y is -6y
OpenStudy (anonymous):
2
OpenStudy (anonymous):
@precal 2 or -2?
OpenStudy (precal):
|dw:1370036211940:dw|
OpenStudy (anonymous):
Right.
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OpenStudy (precal):
|dw:1370036237964:dw|
OpenStudy (precal):
so which one do you want
OpenStudy (anonymous):
so it has to be a -
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