Solve for x :
log10 (x - 10) = 1
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Given,
⇒ log10 (x - 10) = 1
⇒ x - 10 = 101
⇒ x - 10 = 10
⇒ x = 10 + 10 = 20.
Hence, x = 20.
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Express log10 2 + 1 in the form of log10 x.
log (x2 - 21) = 2
log (x - 2) + log (x + 2) = log 5