Question

Tìm x,biết
\(\frac{-15}{12}x+\frac{3}{7}=\frac{6}{5}x-\frac{1}{2}\)

Answer 1

Ta có\(\frac{-15}{12}x+\frac{3}{7}=\frac{6}{5}x-\frac{1}{2}\)

=>\(\frac{-15}{12}x-\frac{6}{5}x=\frac{1}{2}-\frac{3}{7}\)

=>\(\left(\frac{-15}{12}-\frac{6}{5}\right)x=\frac{1}{14}\)

=>\(\frac{-49}{20}x=\frac{1}{14}\)

=>\(x=\frac{1}{14}:\frac{-49}{20}\)

=>\(x=\frac{-10}{343}\)

Answer 2

toán lớp 6 sao khó vậy

Answer 3

=-15/12x-6/5x=-1/2-3/7 hay -49/20x=-14/13 hay x=-14/13:-49/20 hay x=40/91

Answer 4

\(-\frac{15}{12}x+\frac{3}{7}=\frac{6}{5}x-\frac{1}{2}\)

\(\left(-\frac{15}{12}-\frac{6}{5}\right)x=\frac{1}{2}-\frac{3}{7}\)

\(-\frac{49}{20}x=\frac{1}{14}\)

\(x=\frac{1}{14}:\left(-\frac{49}{20}\right)\)

\(\Leftrightarrow\)x=-10/343

Answer 5

Cho hỏi các bạn lấy -49/20 ở đâu v