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staroverov14
@staroverov14
July 2022
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Решите систему:
[tex] \left \{ {{4x+3y=1200} \atop {9x+5y=2070}} \right. [/tex]
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nafanya2014
Verified answer
Умножим первое уравнение на 5, а второе на три и вычтем из второго первое
20х+15у=6000
27х+15у=6210
7х=210
х=30
у=360
2 votes
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staroverov14
Огромное спасибо!!!!
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Answers & Comments
Verified answer
Умножим первое уравнение на 5, а второе на три и вычтем из второго первое20х+15у=6000
27х+15у=6210
7х=210
х=30
у=360