Question

3/x+5=15%

giup mk giai bai nay nhanh nha

Answer 1

\(\frac{3}{x+5}=15\%\)

\(\frac{3}{x+5}=\frac{15}{100}\)

\(\frac{3}{x+5}=\frac{3}{20}\)

\(\Rightarrow x+5=20\)

\(\Rightarrow x=20-5\)

\(\Rightarrow x=15\)

~ Thiên mã ~

Answer 2

\(\frac{3}{x}+5=15\%\)

\(\frac{3}{x}+5=\frac{3}{20}\)

\(\frac{3}{x}=\frac{3}{20}-5\)

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

\(\Rightarrow\left(-97\right)x=3.20\)

\(\Rightarrow\left(-97\right)x=60\)

\(\Rightarrow x=60:\left(-97\right)\)

\(\Rightarrow x=\frac{-60}{97}\)

~ Hok tốt ~

Answer 3

\(\frac{3}{X}\)+5=\(\frac{15}{100}\)

\(\frac{3}{X}\)+5=\(\frac{3}{20}\)

\(\frac{3}{X}\)=\(\frac{3}{20}\)-5

\(\frac{3}{X}\)=\(-\frac{97}{20}\)

X=\(-\frac{97}{20}\)\(:\)3

X=\(-\frac{97}{60}\)