Question

Log x+log7=log 42 solve please

Answer 1

log x+ log 7= log 42
log x=log 42 - log 7
log x=log 42/7                [  log a -  log b= log (a/b)   ]
log x= log 6

therefore:
x=6

Answer: x=6

Answer 2

Please find attached photograph for your answer.

Hope it helps.

Do comment if you have any query.