Question

find the value of x if 7/5^-9* 5/7^6= 5/7^3x

Answer 1

Answer:5

Step-by-step explanation:

(7/5)^-9*(5/7)^6=(5/7)^3x                    

(5/7)^9*(5/7)^6=(5/7)^3x                       (a^-n=1/a^n)

(5/7)^9+6=(5/7)^3x                                 (a^m*a^n=a^m+n)

bases are equal,equate the powers

9+6=3x

15=3x

x=5