1)\(\Rightarrow\frac{x\cdot5}{25}=\frac{-5}{25}\)
\(\Rightarrow x\cdot5=-5\)
\(\Rightarrow x=-1\)
2)\(\Rightarrow2^X\left(3-5\right)=-4^3\)
\(\Rightarrow2^x\cdot-2=-\left(2^6\right)\)
\(\Rightarrow-2^{x+1}=\left(-2\right)^6\)
\(\Rightarrow x+1=6\)
\(\Rightarrow x=5\)