a+8=-13

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Solution for a+8=-13 equation: 


Simplifying
a + 8 = -13

Reorder the terms:
8 + a = -13

Solving
8 + a = -13

Solving for variable 'a'.

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

Add '-8' to each side of the equation.
8 + -8 + a = -13 + -8

Combine like terms: 8 + -8 = 0
0 + a = -13 + -8
a = -13 + -8

Combine like terms: -13 + -8 = -21
a = -21

Simplifying
a = -21

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