200-12a=644

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Solution for 200-12a=644 equation: 


Simplifying
200 + -12a = 644

Solving
200 + -12a = 644

Solving for variable 'a'.

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

Add '-200' to each side of the equation.
200 + -200 + -12a = 644 + -200

Combine like terms: 200 + -200 = 0
0 + -12a = 644 + -200
-12a = 644 + -200

Combine like terms: 644 + -200 = 444
-12a = 444

Divide each side by '-12'.
a = -37

Simplifying
a = -37

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