Question

3/x+5=15%

Answer 1

3x+5=15%

3x=15%-5

3x=\(\dfrac{-97}{20}\)

x=\(\dfrac{-97}{20}\):3

x=\(\dfrac{-97}{60}\)

Vậy x=\(\dfrac{-97}{60}\)

Answer 2

3/x+5=15%

3/x+5=3/20

3/x=3/20-5

3/x=3/20-100/20

3/x=-97/20

x=-97/20:3

x=97/60

Answer 3

câu cuối là -97 bạn nhé

Answer 4

\(\dfrac{3}{x}+5=15\)% ĐKXĐ(x≠0)

\(<=>\dfrac{60}{20x}+\dfrac{100x}{20x}=\dfrac{3x}{20x}\)

=> 60+100x=3x

<=> 60+97x=0

<=> x=\(\dfrac{-60}{97}\)

 

Answer 5

3/x+5=15%

3/x+5=3/20

=) x+5=20

x=20-5

x=15

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