f(x)=3x-10+x(-x-7)

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Solution for f(x)=3x-10+x(-x-7) equation: 


Simplifying
f(x) = 3x + -10 + x(-1x + -7)

Multiply f * x
fx = 3x + -10 + x(-1x + -7)

Reorder the terms:
fx = 3x + -10 + x(-7 + -1x)
fx = 3x + -10 + (-7 * x + -1x * x)
fx = 3x + -10 + (-7x + -1x2)

Reorder the terms:
fx = -10 + 3x + -7x + -1x2

Combine like terms: 3x + -7x = -4x
fx = -10 + -4x + -1x2

Solving
fx = -10 + -4x + -1x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -10x-1 + -4 + -1x

Simplifying
f = -10x-1 + -4 + -1x

Reorder the terms:
f = -4 + -10x-1 + -1x

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