[tex]\frac{2^2 }{5} +\frac{5x}{4} =10\\\\\frac{4 }{5} +\frac{5x}{4}=10\ \ |\ subtract\ \frac{4}{5}\ to\ both\ sides \\\\ \frac{5x}{4}=10-\frac{4}{5} \\\\ \frac{5x}{4}=\frac{50}{5}-\frac{4}{5}\\\\\frac{5x}{4}=\frac{46}{5} \\\\ 25x=46\cdot 4\\\\25x=184 \ \ | \ divide \ both \ sides\ by\ 25\\\\x=\frac{184}{25}\\\\x=7\frac{9}{25} [/tex]
