-21a+6a=

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Solution for -21a+6a= equation: 


Simplifying
-21a + 6a = 0

Combine like terms: -21a + 6a = -15a
-15a = 0

Solving
-15a = 0

Solving for variable 'a'.

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

Divide each side by '-15'.
a = 0

Simplifying
a = 0

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