-2a=9a+66

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Solution for -2a=9a+66 equation: 


Simplifying
-2a = 9a + 66

Reorder the terms:
-2a = 66 + 9a

Solving
-2a = 66 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
-2a + -9a = 66 + 9a + -9a

Combine like terms: -2a + -9a = -11a
-11a = 66 + 9a + -9a

Combine like terms: 9a + -9a = 0
-11a = 66 + 0
-11a = 66

Divide each side by '-11'.
a = -6

Simplifying
a = -6

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