12+5a=-13

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Solution for 12+5a=-13 equation: 


Simplifying
12 + 5a = -13

Solving
12 + 5a = -13

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + 5a = -13 + -12

Combine like terms: 12 + -12 = 0
0 + 5a = -13 + -12
5a = -13 + -12

Combine like terms: -13 + -12 = -25
5a = -25

Divide each side by '5'.
a = -5

Simplifying
a = -5

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