9a-9=12a-2

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Solution for 9a-9=12a-2 equation:


Simplifying
9a + -9 = 12a + -2

Reorder the terms:
-9 + 9a = 12a + -2

Reorder the terms:
-9 + 9a = -2 + 12a

Solving
-9 + 9a = -2 + 12a

Solving for variable 'a'.

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

Add '-12a' to each side of the equation.
-9 + 9a + -12a = -2 + 12a + -12a

Combine like terms: 9a + -12a = -3a
-9 + -3a = -2 + 12a + -12a

Combine like terms: 12a + -12a = 0
-9 + -3a = -2 + 0
-9 + -3a = -2

Add '9' to each side of the equation.
-9 + 9 + -3a = -2 + 9

Combine like terms: -9 + 9 = 0
0 + -3a = -2 + 9
-3a = -2 + 9

Combine like terms: -2 + 9 = 7
-3a = 7

Divide each side by '-3'.
a = -2.333333333

Simplifying
a = -2.333333333

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