Solve  for x:log10 (x-5)=-1

Asked by janhavitopkhane68.9spicertl | 26th Jul, 2020, 05:14: PM

Expert Answer:

log10 x-5 = -1
10 to the power of log subscript 10 space left parenthesis straight x minus 5 right parenthesis end exponent equals 10 to the power of negative 1 end exponent
rightwards double arrow straight x minus 5 equals 1 over 10 space space space.... space left parenthesis Since space straight a to the power of log subscript straight a space straight x end exponent equals straight x right parenthesis
rightwards double arrow straight x equals 1 over 10 plus 5
rightwards double arrow straight x equals 51 over 10
rightwards double arrow straight x equals 5.1

Answered by Renu Varma | 27th Jul, 2020, 12:29: PM