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How do you solve #3 * 5^(x-1) + 5^x = 0.32#?

1 Answer

May 15, 2016

#x = -1#

Explanation:

The equation can be written as #3/5 5^x + 5^x = (3/5+1)5^x =0.32#
arriving at #5^x = 0.2 = 5^(-1)# then equating exponents #x = -1#

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