x+(-15)=-21

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Solution for x+(-15)=-21 equation: 


Simplifying
x + (-15) = -21
x + -15 = -21

Reorder the terms:
-15 + x = -21

Solving
-15 + x = -21

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + x = -21 + 15

Combine like terms: -15 + 15 = 0
0 + x = -21 + 15
x = -21 + 15

Combine like terms: -21 + 15 = -6
x = -6

Simplifying
x = -6

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