10a-2a+a=27

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Solution for 10a-2a+a=27 equation: 


Simplifying
10a + -2a + a = 27

Combine like terms: 10a + -2a = 8a
8a + a = 27

Combine like terms: 8a + a = 9a
9a = 27

Solving
9a = 27

Solving for variable 'a'.

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

Divide each side by '9'.
a = 3

Simplifying
a = 3

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