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Problem is

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7^3x-1=49.? solve x

asked Oct 29, 2014 in CALCULUS by anonymous

1 Answer

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The exponential equation is 73x-1 = 49.

73x-1 = 72.

Apply one-to-one property: am = an ⇒ m=n.

3x-1 = 2

Add 1 to each side.

3x - 1 + 1 = 2 + 1

3x = 3

Divide each side by 3.

3x/3 = 3/3

x = 1.

The value of x = 1.

answered Oct 29, 2014 by casacop Expert

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