Beastmode1551
28.06.2019 •
Mathematics
Which of the following is the solution to 3/x + 2/(x+1) = 3/5x? -11/6 -6/11 11/6 6/11
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Ответ:
3/x + 2/(x+1) = 3/5x
[3 · 5(x + 1) + 2 · 5x] / 5x(x + 1) = 3(x + 1) / 5x(x + 1)
3 · 5(x + 1) + 2 · 5x = 3(x + 1)
15x + 15 + 10x = 3x + 3
15x + 10x - 3x = -15 + 3
22x = -12
x = -12/22 = -6/11
Ответ: