12a-11=9a

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Solution for 12a-11=9a equation:


Simplifying
12a + -11 = 9a

Reorder the terms:
-11 + 12a = 9a

Solving
-11 + 12a = 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.
-11 + 12a + -9a = 9a + -9a

Combine like terms: 12a + -9a = 3a
-11 + 3a = 9a + -9a

Combine like terms: 9a + -9a = 0
-11 + 3a = 0

Add '11' to each side of the equation.
-11 + 11 + 3a = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 3a = 0 + 11
3a = 0 + 11

Combine like terms: 0 + 11 = 11
3a = 11

Divide each side by '3'.
a = 3.666666667

Simplifying
a = 3.666666667

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