Question

3600 :[(5x +335) :x ] = 50

Answer 1

Trả lời:

\(3600:\left[\left(5x+335\right):x\right]=50\)

\(\Leftrightarrow\left(5x+335\right):x=\dfrac{3600}{50}\)

\(\Leftrightarrow\left(5x+335\right):x=72\)

\(\Leftrightarrow\left(5x+335\right).\dfrac{1}{x}=72\)

\(\Leftrightarrow5x.\dfrac{1}{x}+335.\dfrac{1}{x}=72\)

\(\Leftrightarrow5+\dfrac{335}{x}=72\)

\(\Leftrightarrow\dfrac{335}{x}=67\)

\(\Leftrightarrow x=\dfrac{335}{67}\)

\(\Leftrightarrow x=5\)

Vậy \(x=5\).

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Answer 2

trả lời:

3600:[(5x+335):x]=50

=>(5x+335):x=3600:50

(5x+335):x=72

=>5x.1:x+335.1:x=72

=>=5+335:x=72

=>335:x=67

x=335:67

x=5