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

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


Simplifying
(3x + 9) + (x + 5) = 0

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

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

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

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

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

Combine like terms: 9 + 5 = 14
14 + 3x + x = 0

Combine like terms: 3x + x = 4x
14 + 4x = 0

Solving
14 + 4x = 0

Solving for variable 'x'.

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

Add '-14' to each side of the equation.
14 + -14 + 4x = 0 + -14

Combine like terms: 14 + -14 = 0
0 + 4x = 0 + -14
4x = 0 + -14

Combine like terms: 0 + -14 = -14
4x = -14

Divide each side by '4'.
x = -3.5

Simplifying
x = -3.5

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