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OpenStudy (anonymous):
Help Solve by elimination. -4x +5y=14 3x +y=20
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OpenStudy (anonymous):
[-4x+5y=14]* 3 [3x+y=20] * -4 ________________ -12x+15y=42 -12x-4x=-80 _______________- 19y=122 y=122/19
OpenStudy (anonymous):
Hey thanks - it make more sense now.
OpenStudy (anonymous):
No problem. 122/19 seems like a weird answer though so I'd double check. You can also plug in your y value into either equation to solve for x
OpenStudy (anonymous):
y=11.09 repeating, x=10.36 repeating is what I come up with
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