Question

4/x+20=1/15 how to solve​

Answer 1

your answer may be this

Answer 2

$\dfrac{4}{x}\:+\:20\:=\:\dfrac{1}{15}$

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• We have to find the value of x.

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→ $\dfrac{4}{x}\:+\:20\:=\:\dfrac{1}{15}$

Take LCM

→ $\dfrac{4\:+\:20x}{x}\:=\:\dfrac{1}{15}$

→ $4\:+\:20x\:=\:\dfrac{x}{15}$

Cross-multiply them

→ $15(4\: + \:20x) \:= \:x$

→ $60\: + \:300x \:= \:x$

→ $300x\:-\:x\:=\:-\:60$

→ $299x\:=\:-\:60$

→ $x\:=\:\dfrac{-60}{299}$

→ $x\:=\:-\:0.2006$

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x = - 0.2 (approx.)

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