Question

\(\left(4,5-2.x\right).1\frac{4}{7}=\frac{11}{14}\)

Answer 1

\(\left(4,5-2.x\right).1\frac{4}{7}=\frac{11}{14}\)

\(\left(4,5-2.x\right).\frac{11}{7}=\frac{11}{14}\)

\(\left(4,5-2.x\right)=\frac{11}{14}:\frac{11}{7}\)

\(4,5-2.x=\frac{1}{2}\)

\(2.x=4,5-\frac{1}{2}\)

\(2.x=4\)

\(x=4:2=2\)

Answer 2

\(\left(4,5-2x\right)\cdot1\frac{4}{7}=\frac{11}{14}\)

\(\left(4,5-2x\right)\cdot\frac{11}{7}=\frac{11}{14}\)

\(4,5-2x=\frac{1}{2}\)

\(\frac{45}{10}-2x=\frac{1}{2}\)

\(2x=4\)

\(x=2\)

Answer 3

\(\left(4,5-2.x\right).\frac{11}{7}=\frac{11}{14}\)

\(\left(4,5-2.x\right)\)         =    \(\frac{11}{14}:\frac{11}{7}\)

\(\left(4,5-2.x\right)\)         =     \(\frac{1}{2}\)   

               \(2.x\)            =     \(4,5-\frac{1}{2}\)  

                \(2.x\)           =      \(4\)

                   \(x\)            =     \(4:2\)

                   \(x\)            =        \(2\)

tích nha