Question

Tìm x biết:

a) (3/4.x-0,54) : (-2/9) =0,48 - 3/4

 

Answer 1

\(\left(\frac{3}{4}\cdot X-0.54\right):\left(-\frac{2}{9}\right)=0.48-\frac{3}{4}\)

 \(\left(\frac{3}{4}.X-0.54\right):\left(-\frac{2}{9}\right)=\frac{-27}{100}\)

\(\left(\frac{3}{4}.X-0.54\right)=\frac{-27}{100}.\frac{-2}{9}\)

\(\left(\frac{3}{4}.X-0.54\right)=\frac{3}{50}\)

\(\frac{3}{4}.X=\frac{3}{50}+0.54\)

\(\frac{3}{4}.X=\frac{3}{50}+\frac{27}{50}\)

\(\frac{3}{4}.X=\frac{3}{5}\)

X= \(\frac{3}{5}:\frac{3}{4}\)

X= \(\frac{3}{5}.\frac{4}{3}\)

X=\(\frac{4}{5}\)