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anonymous
 4 years ago
Help? Explain?
3x  9y = 3
6x  3y = 24
anonymous
 4 years ago
Help? Explain? 3x  9y = 3 6x  3y = 24

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0These are linear equations what did you want to do with them?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0It's a system, I have to solve them but I can't figure out how to do it.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0you can solve using elimination: multiply the first equation by 2 to eliminate the x's:\[~~~~~2~(3x9y=3)~~~~~~\implies~~~~~~~~6x18y=6\]\[\underline{~(6x3y=24)}~~~~~\implies~~\underline{(6x3y=24)}\]\[~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~015y=30\]now solve for y:\[15y=30\]divide by 15:\[y=2\] knowing the value of y we could now use substitution to solve for x: pick either of the two equations and plug in the value of y\[3x9(2)=3\]distribute:\[3x+18=3\]subtract 18:\[3x=15\]divide by 3:\[x=5\] so: \(x=5\) and \(y=2\) hope this helps! :)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0So much! You helped me understand it better too, thank you so much!

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0No problem, anytime! :)
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