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

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


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

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

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

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
3 + 9a + a + -3b = 12 + -1a + a + b

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

Combine like terms: -1a + a = 0
3 + 10a + -3b = 12 + 0 + b
3 + 10a + -3b = 12 + b

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

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

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

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

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

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

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

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

Simplifying
a = 0.9 + 0.4b

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