12ab+9=3ab

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Solution for 12ab+9=3ab equation:


Simplifying
12ab + 9 = 3ab

Reorder the terms:
9 + 12ab = 3ab

Solving
9 + 12ab = 3ab

Solving for variable 'a'.

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

Add '-3ab' to each side of the equation.
9 + 12ab + -3ab = 3ab + -3ab

Combine like terms: 12ab + -3ab = 9ab
9 + 9ab = 3ab + -3ab

Combine like terms: 3ab + -3ab = 0
9 + 9ab = 0

Add '-9' to each side of the equation.
9 + -9 + 9ab = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 9ab = 0 + -9
9ab = 0 + -9

Combine like terms: 0 + -9 = -9
9ab = -9

Divide each side by '9b'.
a = -1b-1

Simplifying
a = -1b-1

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