Решите систему уравнений x+y=325 2.5x+5.5y=10000. Created by bezimjany. matematika-ru

Решите систему уравнений x+y=325 2.5x+5.5y=10000...

July 2022 1 7 Report

Решите систему уравнений

x+y=325
2.5x+5.5y=10000

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Amaimoon $\left \{ {{x+y=325}\atop {2,5x+5,5y=10000}}\right.\left \{ {{y=325-x} \atop {2,5x+5,5(325-x)=10000}} \right.\\2,5x+1787,5-5,5x=10000\\-3x=8212,5\\x=-2737,5\\y=3062,5$

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