Question

2^r-5=5 find it r and how do you find it​

Answer 1

Hii its tom85

2^r - 5 = 5

2^r = 10

using log on both side

rlog2 = log10

r = ( log5 + log2)/log2

r=log5/log2 +1

concept

log(a*b)=log a + log b

__________/\_________☺️

hope it helps you dude