Question

Tìm x :   ba phần tư nhân x trừ năm phần ba nhân x = bay phần muoi hai

Answer 1

\(\frac{3}{4}\times x+\frac{5}{3}\times x=\frac{7}{12}\)

\(\left(\frac{3}{4}+\frac{5}{3}\right)\times x=\frac{7}{12}\)

\(\frac{29}{12}\times x=\frac{7}{12}\)

\(x=\frac{7}{12}\div\frac{29}{12}\)

\(x=\frac{7}{29}\)

Answer 2

-11

 7

Answer 3

\(\frac{\frac{3}{4}-\frac{5}{3}}{x}=\frac{7}{12}\Rightarrow x=\left(\frac{3}{4}-\frac{5}{3}\right):\frac{7}{12}=-\frac{11}{12}:\frac{7}{12}=-\frac{11}{12}.\frac{12}{7}=-\frac{11}{7}\)