# algebra homework

Solve the logarithmic equation. Be sure to reject any value that is not in the domain of the original logarithmic expressions. Give the exact answer.

ln sqrt x+6 = 9 i got {e^9-6}

log (x + 4) = log (5x - 5)
i got: 9/4

log (x + 30) - log 2 = log (3x + 2)
i got: {58}

1. Please limit yourself to one question per post, and show your work

log (x + 4) = log (5x - 5)

As long as the bases of both logs are the same,

x + 4 = 5x - 5
4x = 9
x = 9/4
=======================
log (x + 30) - log 2 = log (3x + 2)
(x+30)/2 = (3x+2)
x + 30 = 6x + 4
5x = 26
x = 5.2

posted by drwls
2. true or false, all rational numbers are integers. Explain

posted by bob

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