f(x)=x+3+x(-9x+7)

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Solution for f(x)=x+3+x(-9x+7) equation: 


Simplifying
f(x) = x + 3 + x(-9x + 7)

Multiply f * x
fx = x + 3 + x(-9x + 7)

Reorder the terms:
fx = x + 3 + x(7 + -9x)
fx = x + 3 + (7 * x + -9x * x)
fx = x + 3 + (7x + -9x2)

Reorder the terms:
fx = 3 + x + 7x + -9x2

Combine like terms: x + 7x = 8x
fx = 3 + 8x + -9x2

Solving
fx = 3 + 8x + -9x2

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'x'.
f = 3x-1 + 8 + -9x

Simplifying
f = 3x-1 + 8 + -9x

Reorder the terms:
f = 8 + 3x-1 + -9x

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