12a-11=-9a-1

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Solution for 12a-11=-9a-1 equation:


Simplifying
12a + -11 = -9a + -1

Reorder the terms:
-11 + 12a = -9a + -1

Reorder the terms:
-11 + 12a = -1 + -9a

Solving
-11 + 12a = -1 + -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 = -1 + -9a + 9a

Combine like terms: 12a + 9a = 21a
-11 + 21a = -1 + -9a + 9a

Combine like terms: -9a + 9a = 0
-11 + 21a = -1 + 0
-11 + 21a = -1

Add '11' to each side of the equation.
-11 + 11 + 21a = -1 + 11

Combine like terms: -11 + 11 = 0
0 + 21a = -1 + 11
21a = -1 + 11

Combine like terms: -1 + 11 = 10
21a = 10

Divide each side by '21'.
a = 0.4761904762

Simplifying
a = 0.4761904762

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