Example 3 (Solving index equation simultaneously) October 3, 2017February 4, 2014 by Example 3 (Index Equation – Equal Base) Solve the following simultaneous equations. $${2}^{x}{.4}^{2y}=8$$ $$\frac{{3}^{x}}{{9}^{y}}=\frac{1}{27}$$

Please solve this simultaneously

2^2-x + 5^2-y = 7 and 5^y – 2^x+2 = -3