(x-9)+(x+12)=

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Solution for (x-9)+(x+12)= equation:


Simplifying
(x + -9) + (x + 12) = 0

Reorder the terms:
(-9 + x) + (x + 12) = 0

Remove parenthesis around (-9 + x)
-9 + x + (x + 12) = 0

Reorder the terms:
-9 + x + (12 + x) = 0

Remove parenthesis around (12 + x)
-9 + x + 12 + x = 0

Reorder the terms:
-9 + 12 + x + x = 0

Combine like terms: -9 + 12 = 3
3 + x + x = 0

Combine like terms: x + x = 2x
3 + 2x = 0

Solving
3 + 2x = 0

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 2x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 2x = 0 + -3
2x = 0 + -3

Combine like terms: 0 + -3 = -3
2x = -3

Divide each side by '2'.
x = -1.5

Simplifying
x = -1.5

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