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Автор - 2002Н

Решите уравнение 0,55(×+4)=5,5(2×-3)

Ответ

Автор - jekadva
0,55(x+4)=5,5(2x-3)
0,55x+2,2=11x-16,5
0,55x-11x=-16,5-2,2
-10,45x=-18,7
x=18,7:10,45
x=1 15/19

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