Question

2-x+3/4=55/63 chia 11/21

Answer 1

2 - \(x\) + \(\dfrac{3}{4}\) = \(\dfrac{55}{63}\) : \(\dfrac{11}{21}\)

2 - \(x\) + \(\dfrac{3}{4}\) = \(\dfrac{55}{63}\) x \(\dfrac{21}{11}\)

2 - \(x\) + \(\dfrac{3}{4}\) = \(\dfrac{5}{3}\)

       2 - \(x\) =  \(\dfrac{5}{3}\) - \(\dfrac{3}{4}\)

       2 - \(x\) = \(\dfrac{20}{12}\) - \(\dfrac{9}{12}\)

       2 - \(x\) = \(\dfrac{11}{12}\)

            \(x\) = 2 - \(\dfrac{11}{12}\)

            \(x\) = \(\dfrac{24}{12}\) - \(\dfrac{11}{12}\)

            x = \(\dfrac{13}{12}\)