-a-2a=-6

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Solution for -a-2a=-6 equation: 


Simplifying
-1a + -2a = -6

Combine like terms: -1a + -2a = -3a
-3a = -6

Solving
-3a = -6

Solving for variable 'a'.

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

Divide each side by '-3'.
a = 2

Simplifying
a = 2

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