Предмет: Математика, автор: pomilojanastasia


 \frac{x - 2 }{x - 3}  =  \frac{7}{5}

Ответы

Автор ответа: DimaPuchkov
0

\frac{x-2}{x-3}=\frac{7}{5} \\ \\ 5\cdot (x-2)=7\cdot (x-3) \\ \\ 5x-10=7x-21 \\ \\ 5x-7x=-21+10  \\ \\ -2x=-11  \\ \\ 2x=11 \\ \\ x=\frac{11}{2} =5\frac{1}{2}=5,5

Автор ответа: Аноним
2

Ответ:

 \frac{x - 2}{x - 3}  =   \frac{7}{5}  \\ 5(x - 2) = 7(x - 3) \\ 5x - 10 = 7x - 21 \\ 5x - 7x =  - 21 + 10 \\  - 2x =  - 11 \\ x = 5.5

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