f(0)=3x+9

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Solution for f(0)=3x+9 equation:


Simplifying
f(0) = 3x + 9

Reorder the terms for easier multiplication:
0f = 3x + 9

Anything times zero is zero.
0f = 3x + 9

Reorder the terms:
0 = 9 + 3x

Solving
0 = 9 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
0 + -3x = 9 + 3x + -3x
Remove the zero:
-3x = 9 + 3x + -3x

Combine like terms: 3x + -3x = 0
-3x = 9 + 0
-3x = 9

Divide each side by '-3'.
x = -3

Simplifying
x = -3

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