Question

pls tell the answer of questien no 4 it's urgent​

Answer 1

5^x ÷ 5^-3 = 5^3

=> 5^x = 5^3 × 5^-3

=> 5^x = 5^3 × 1/5^3

=> 5^x = 1

=> 5^x = 5^0 {we know x^0 = 1}

=> x = 0