Question

solve this



make sure that the answer is 3​

Answer 1

Answer:

Step-by-step explanation:

a= log10(20)

b =log10(25)

2a-b= 2log10(20)-log10(25)

2log10(x+1)= log10(20^2/25)

(x+1)^2=20^2/25

(x+1)^2=16

taking square root on both sides

x+1 = 4

x= 4-1

  x=3