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OpenStudy (anonymous):
5x+2y=7 -2x+6y=9
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OpenStudy (anonymous):
are the two equations part of the same problem or separate?
OpenStudy (anonymous):
Same
OpenStudy (anonymous):
alright so multiply each of the top numbers by -3 so that your y equals 0 and then you can find x
hero (hero):
Multiply the first equation by 3, then subtract: 15x + 6y = 21 -2x + 6y = 9 17x = 12 x = 12/17 Solve for y
OpenStudy (anonymous):
\[(5x+2y=7)-3\]\[-15x-6y=-21\]\[-2x+6y=9\]\[-17x=-12\] x=12/17
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