x+9+x=-3

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Solution for x+9+x=-3 equation: 


Simplifying
x + 9 + x = -3

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

Combine like terms: x + x = 2x
9 + 2x = -3

Solving
9 + 2x = -3

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 2x = -3 + -9

Combine like terms: 9 + -9 = 0
0 + 2x = -3 + -9
2x = -3 + -9

Combine like terms: -3 + -9 = -12
2x = -12

Divide each side by '2'.
x = -6

Simplifying
x = -6

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