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OpenStudy (casadie1004):
Help please! Fan and medal! 3. solve the system of equations by substitution x=-4y x+5y=2 A.-8,2 B.8,-2 C.2/9, -8/9 D -12,3 4.solve the system of equations by elimination. 3x+4y=31 2x-4y=-6 A. (4,5) B.(5,4) C.(-5,12.5) D.(5,-4)
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OpenStudy (thecalchater):
You can use mathway.com and separate them by a comma and click the drop down and it will solve them for you. :)
OpenStudy (ryanchick):
b and c
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