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luda_lava [24]
2 years ago
6

If 1/x + 1/3х = 5, what is the value of 3x/4

Mathematics
1 answer:
marusya05 [52]2 years ago
6 0

Answer:

Step-by-step explanation:

\frac{1}{x}+\frac{1}{3x}=5\\\\\frac{1*3}{x*3}+\frac{1}{3x}=5\\\\\frac{3}{3x}+\frac{1}{3x}=5\\\\\frac{4}{3x}=5\\\\4=5*3x\\\\4=15x\\\\\frac{4}{15}=x

x = 4/15

\frac{3}{4}x=\frac{3}{4}*\frac{4}{15}\\\\=\frac{1}{5}

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