f(x)=5-(x+3)+2x

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Solution for f(x)=5-(x+3)+2x equation: 


Simplifying
f(x) = 5 + -1(x + 3) + 2x

Multiply f * x
fx = 5 + -1(x + 3) + 2x

Reorder the terms:
fx = 5 + -1(3 + x) + 2x
fx = 5 + (3 * -1 + x * -1) + 2x
fx = 5 + (-3 + -1x) + 2x

Combine like terms: 5 + -3 = 2
fx = 2 + -1x + 2x

Combine like terms: -1x + 2x = 1x
fx = 2 + 1x

Solving
fx = 2 + 1x

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 2x-1 + 1

Simplifying
f = 2x-1 + 1

Reorder the terms:
f = 1 + 2x-1

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