3a+4b+6a-9b-12=

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Solution for 3a+4b+6a-9b-12= equation:


Simplifying
3a + 4b + 6a + -9b + -12 = 0

Reorder the terms:
-12 + 3a + 6a + 4b + -9b = 0

Combine like terms: 3a + 6a = 9a
-12 + 9a + 4b + -9b = 0

Combine like terms: 4b + -9b = -5b
-12 + 9a + -5b = 0

Solving
-12 + 9a + -5b = 0

Solving for variable 'a'.

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

Add '12' to each side of the equation.
-12 + 9a + 12 + -5b = 0 + 12

Reorder the terms:
-12 + 12 + 9a + -5b = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 9a + -5b = 0 + 12
9a + -5b = 0 + 12

Combine like terms: 0 + 12 = 12
9a + -5b = 12

Add '5b' to each side of the equation.
9a + -5b + 5b = 12 + 5b

Combine like terms: -5b + 5b = 0
9a + 0 = 12 + 5b
9a = 12 + 5b

Divide each side by '9'.
a = 1.333333333 + 0.5555555556b

Simplifying
a = 1.333333333 + 0.5555555556b

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