(3x+9)-(5x-4)+4x=

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Solution for (3x+9)-(5x-4)+4x= equation:


Simplifying
(3x + 9) + -1(5x + -4) + 4x = 0

Reorder the terms:
(9 + 3x) + -1(5x + -4) + 4x = 0

Remove parenthesis around (9 + 3x)
9 + 3x + -1(5x + -4) + 4x = 0

Reorder the terms:
9 + 3x + -1(-4 + 5x) + 4x = 0
9 + 3x + (-4 * -1 + 5x * -1) + 4x = 0
9 + 3x + (4 + -5x) + 4x = 0

Reorder the terms:
9 + 4 + 3x + -5x + 4x = 0

Combine like terms: 9 + 4 = 13
13 + 3x + -5x + 4x = 0

Combine like terms: 3x + -5x = -2x
13 + -2x + 4x = 0

Combine like terms: -2x + 4x = 2x
13 + 2x = 0

Solving
13 + 2x = 0

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 2x = 0 + -13

Combine like terms: 13 + -13 = 0
0 + 2x = 0 + -13
2x = 0 + -13

Combine like terms: 0 + -13 = -13
2x = -13

Divide each side by '2'.
x = -6.5

Simplifying
x = -6.5

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