Question

\(\frac{1}{3}x+\frac{2}{5}\left(x-1\right)=0.\)

các bn trả lời nhanh hộ mình nha, người nhanh nhất mình tk

Answer 1

\(\frac{1}{3}x+\frac{2}{5}x-\frac{2}{5}x=0\)

\(x.\left(\frac{1}{3}+\frac{2}{5}\right)-\frac{2}{5}=0\)

\(x.\frac{11}{15}=0+\frac{2}{5}=\frac{2}{5}\)

\(x=\frac{2}{5}:\frac{11}{15}=\frac{6}{11}\)

Answer 2

Mình không biết! Mình mới lớp 5 thôi!

Answer 3

=1/3*x+2/5*x-2/5.

=x*(1/3+2/5)-2/5.

=x*11/15-2/5=0.

=>x*11/15=2/5

=>x=2/5:11/15=6/11.

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Answer 4

\(\frac{1}{3}x+\frac{2}{5}\left(x-1\right)=0\)

\(\frac{1}{3}x+\frac{2}{5}x-\frac{2}{5}=0\)

\(x\left(\frac{1}{3}+\frac{2}{5}\right)-\frac{2}{5}=0\)

\(x.\frac{11}{15}=\frac{2}{5}\)

\(x=\frac{2}{5}:\frac{11}{15}=\frac{6}{11}\)

Answer 5

\(\frac{1}{3}x+\frac{2}{5}\left(x-1\right)=0\)

\(\frac{1}{3}x+\frac{2}{5}x-\frac{2}{5}=0\)

\(x\left(\frac{1}{3}+\frac{2}{5}\right)=0+\frac{2}{5}\)

\(x.\frac{11}{15}=\frac{2}{5}\)

\(x=\frac{2}{5}\div\frac{11}{15}=\frac{6}{11}\)