Question

Tìm X

\(\frac{X}{20}=\frac{3}{4}+\frac{-3}{5}\)

Answer 1

x/20=3/20

=>x=3

Answer 2

x/20=3/4-3/5.

x/20=15/20-12/20.

x/20=3/20.

x=3.

Vậy x=3.

tk mk nha các bn.

-chúc ai tk mk hocjgioir-

Answer 3

\(\frac{X}{20}=\frac{3}{4}+\frac{-3}{5}\)

\(\frac{X}{20}=\frac{15}{20}+\frac{-12}{20}\)

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

\(\Rightarrow X=3\)

Answer 4

\(\frac{x}{20}=\frac{3}{4}+\frac{-3}{5}\)

\(\Rightarrow\frac{x}{20}=\frac{15}{20}+\frac{-12}{20}\)

\(\Rightarrow x=15+\left(-12\right)\)

\(\Rightarrow x=3\)

Answer 5

\(\frac{x}{20}\)=  \(\frac{3}{20}\)

\(\Rightarrow\)x=3