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OpenStudy (anonymous):
8x-4y=20 4x-2y=10 how many solutions? i think it is 1, but calculators say infinitely many? if that was true.. (1,1) should fit complete that equation but it doesnt
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OpenStudy (anonymous):
you need to eliminate one variable
OpenStudy (anonymous):
multiply the bottom line by 2 and then add
OpenStudy (anonymous):
actually both of these cancel each other|dw:1432251531745:dw|
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