Tìm x biết rằng \(\frac{{11}}{5} - (0,35 + x) = 1\frac{1}{2}\)

* Hướng dẫn giải

 \(\begin{aligned} &\frac{{11}}{5} - (0,35 + x) = 1\frac{1}{2}\\ &\frac{{11}}{5} - \left( {\frac{7}{{20}} + x} \right) = \frac{3}{2}\\ &\frac{7}{{20}} + x = \frac{{11}}{5} - \frac{3}{2}\\ &\frac{7}{{20}} + x = \frac{7}{{10}}\\ &x = \frac{7}{{10}} - \frac{7}{{20}}\\ &x = \frac{7}{{10}} \end{aligned}\)