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OpenStudy (anonymous):
2x - y - 4 = 0 3x + y - 9 = 0 What is the solution set of the given system?
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OpenStudy (campbell_st):
just add the equations together, this will eliminate y and allow you to solve for x. when you have a value for x, substitute into either equation to find y
OpenStudy (anonymous):
how would i add them together?
OpenStudy (uri):
2x - y - 4 = 0 3x + y - 9 = 0 ======== 5x-13 x=13/5
OpenStudy (uri):
Now you have x you have to solve for y
OpenStudy (anonymous):
how?
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OpenStudy (anonymous):
would it be 6/5?
OpenStudy (uri):
Put the value of x in equation no2 3x + y - 9 = 0 3(13/5)+y-9=0 and yes...y =6/5
OpenStudy (anonymous):
oh ok thank you so much!
OpenStudy (uri):
You're welcome :)
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