\( \begin{array}{ll}\text { 11. } \frac{9}{10} a+7=\frac{4}{5} a & \text { 12. } \frac{m}{6}-\frac{m}{4}+\frac{m}{5}=2 \\ \text { 13. } \frac{1}{2}(x-1)+\frac{3}{4}(x+3)=0 & \text { 14. } \frac{2}{3}(7-x)+\frac{1}{4}(x+2)=0 \\ \text { 15. } \frac{3}{4}(x+4)-\frac{5}{6}(1-x)=0 & \text { 16. } \frac{1}{4}(4-p)-\frac{3}{4}(1+p)=1 \\ \text { 17. } 6.2 x-1.3=5.2 & \text { 18. } 4.7 y-3=0.2 \\ \text { 19. } 1.41-1.2 x=1.02 & \text { 20. } 1.12 x-4.1=0.12 \\ \text { 21. } 6.4 z-3=z+1.2 & \text { 22. } 6.1 x=6+1.3 x \\ \text { 23. } 3(1.4 x-1)=3.3 x+1.2 & \text { 24. } 1.2(1-1)=8.1+3.51\end{array} \)

\( \left\{ \begin{array} { l } { 2 x y - y = 7 } \\ { x - 5 y - 2 } \end{array} \right. \)

d the exact value of the solution to the equation \( 2 e^{2 x}-7 e^{x}-4=0 \)

\( \therefore \sqrt { x } ( x ^ { \frac { 5 } { 2 } } + x ^ { 2 } + 5 ) \)

5. Separen en términos y resuelvan. a. \( \left(-\frac{4}{3}+\frac{1}{6}\right)-\left(-\frac{3}{2}\right)^{-2}+\sqrt[3]{\left(\frac{3}{4}+\frac{1}{8}\right)-} \) b. \( \left(\frac{3}{2}-\frac{1}{2}\right)^{2}+\sqrt[3]{-\frac{1}{64}}-0.5= \) c. \( \sqrt[3]{1-\frac{7}{8}}-\left(-\frac{2}{5}+\frac{1}{10}\right)^{-4}+0.3- \) d. \( -\left(\frac{8}{5}-\frac{6}{15}\right)-\sqrt[3]{1-\frac{31}{32}}+\left(\frac{7}{5}\right)^{2}= \)

2imalify \( \frac{x^{2}-y^{2}}{x^{2} x y} \) \( \frac{y+2 x-3 y}{3 x-2 y}=4 \), evaluate \( 2 x y \) If \( z=\sqrt{x^{2}-y^{2}} \), express \( x \) interm 9 \( y \) and 2