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karina20002010
@karina20002010
July 2022
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3.решить систему уравнений
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nesterovigor9
А-3*b=-2
2*a-4*b=-1
a=3*b-2 поставляем а во второе уравнение
2*(3*b-2)-4*b=-1
6*b-4-4*b=-1
2*b=3
b=1,5
a=3*1,5-2=2,5
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Answers & Comments
2*a-4*b=-1
a=3*b-2 поставляем а во второе уравнение
2*(3*b-2)-4*b=-1
6*b-4-4*b=-1
2*b=3
b=1,5
a=3*1,5-2=2,5