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2 March, 03:56

If f (x) = 5x-7, then what us the solution to f (x) = 4

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  1. 2 March, 06:58
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    F (x) is function notation, and is still solved similar to a "y=" equation. We want to solve the equation where the equation's solution equals 4. Therefore, solve like a y = equation and find the x-value which gives a 4 for the answer:

    4=5x+7

    4-7=5x

    -3=5x

    (-3/5) = x
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