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OpenStudy (anonymous):
solve by elimination method 0.3x-0.2y=4 .2x+.5y=-21/23
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OpenStudy (anonymous):
you can multiply the first equation by 0.5, then add it to .2 times the second equation, that should eliminate the y variable
OpenStudy (anonymous):
the fraction -21/23?
OpenStudy (anonymous):
multiply that too
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