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OpenStudy (anonymous):
What is the solution of the following system 3x+3y=10 -9x-9y=-30
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OpenStudy (anonymous):
i tried to multiply the first equation by 3 but then both variables cancle out when you try to add them?
OpenStudy (mathstudent55):
You did well. Can you show what you got when you added the two equations?
OpenStudy (anonymous):
thats what i'm confused about 3(3x+3y=10) 9x+9y=10
OpenStudy (mathstudent55):
|dw:1403897439604:dw|
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