x+(-3)=-15

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Solution for x+(-3)=-15 equation: 


Simplifying
x + (-3) = -15
x + -3 = -15

Reorder the terms:
-3 + x = -15

Solving
-3 + x = -15

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 + x = -15 + 3

Combine like terms: -3 + 3 = 0
0 + x = -15 + 3
x = -15 + 3

Combine like terms: -15 + 3 = -12
x = -12

Simplifying
x = -12

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