x=3+x+(4x+9)

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Solution for x=3+x+(4x+9) equation:


Simplifying
x = 3 + x + (4x + 9)

Reorder the terms:
x = 3 + x + (9 + 4x)

Remove parenthesis around (9 + 4x)
x = 3 + x + 9 + 4x

Reorder the terms:
x = 3 + 9 + x + 4x

Combine like terms: 3 + 9 = 12
x = 12 + x + 4x

Combine like terms: x + 4x = 5x
x = 12 + 5x

Solving
x = 12 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
x + -5x = 12 + 5x + -5x

Combine like terms: x + -5x = -4x
-4x = 12 + 5x + -5x

Combine like terms: 5x + -5x = 0
-4x = 12 + 0
-4x = 12

Divide each side by '-4'.
x = -3

Simplifying
x = -3

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