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16 Log5(5x + 7) = 8

0 votes

help me please.

asked Feb 18, 2014 in ALGEBRA 1 by johnkelly Apprentice

1 Answer

0 votes

The equation is image.

Divide each side by 16.

image

Apply exponential formula:image.

image

image

Subtract 7 from each side.

image

Divide each side by 5.

image

image

image

The solution is image.

answered Mar 22, 2014 by goushi Pupil

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