12-2a=-5-9

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Solution for 12-2a=-5-9 equation: 


Simplifying
12 + -2a = -5 + -9

Combine like terms: -5 + -9 = -14
12 + -2a = -14

Solving
12 + -2a = -14

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 + -2a = -14 + -12

Combine like terms: 12 + -12 = 0
0 + -2a = -14 + -12
-2a = -14 + -12

Combine like terms: -14 + -12 = -26
-2a = -26

Divide each side by '-2'.
a = 13

Simplifying
a = 13

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