2*a=9-a

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Solution for 2*a=9-a equation:


Simplifying
2a = 9 + -1a

Solving
2a = 9 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
2a + a = 9 + -1a + a

Combine like terms: 2a + a = 3a
3a = 9 + -1a + a

Combine like terms: -1a + a = 0
3a = 9 + 0
3a = 9

Divide each side by '3'.
a = 3

Simplifying
a = 3

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