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

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


Simplifying
12 + -1a + b = 9a + -3b + 3

Reorder the terms:
12 + -1a + b = 3 + 9a + -3b

Solving
12 + -1a + b = 3 + 9a + -3b

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.
12 + -1a + -9a + b = 3 + 9a + -9a + -3b

Combine like terms: -1a + -9a = -10a
12 + -10a + b = 3 + 9a + -9a + -3b

Combine like terms: 9a + -9a = 0
12 + -10a + b = 3 + 0 + -3b
12 + -10a + b = 3 + -3b

Add '-12' to each side of the equation.
12 + -10a + -12 + b = 3 + -12 + -3b

Reorder the terms:
12 + -12 + -10a + b = 3 + -12 + -3b

Combine like terms: 12 + -12 = 0
0 + -10a + b = 3 + -12 + -3b
-10a + b = 3 + -12 + -3b

Combine like terms: 3 + -12 = -9
-10a + b = -9 + -3b

Add '-1b' to each side of the equation.
-10a + b + -1b = -9 + -3b + -1b

Combine like terms: b + -1b = 0
-10a + 0 = -9 + -3b + -1b
-10a = -9 + -3b + -1b

Combine like terms: -3b + -1b = -4b
-10a = -9 + -4b

Divide each side by '-10'.
a = 0.9 + 0.4b

Simplifying
a = 0.9 + 0.4b

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