Find the value of x for which f(x) = x

label Algebra
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Dec 11th, 2015

Hello!

Here f(x) = x is the same that

(1/3)x - 3 = x.

Subtract (1/3)x from both sides and obtain

-3 = x - (1/3)x = (2/3)x.

Multiply both sides by 3/2 and obtain

(-3)*(3/2) = (3/2)*(2/3)*x = x.

So x = (-3)*(3/2) = -9/2 = -4.5.

The answer: x = -4.5.

Please ask if something is unclear.
Dec 11th, 2015

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Dec 11th, 2015
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Dec 11th, 2015
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