6+3a+b=9

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Solution for 6+3a+b=9 equation:


Simplifying
6 + 3a + b = 9

Solving
6 + 3a + b = 9

Solving for variable 'a'.

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

Add '-6' to each side of the equation.
6 + 3a + -6 + b = 9 + -6

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

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

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

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

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

Divide each side by '3'.
a = 1 + -0.3333333333b

Simplifying
a = 1 + -0.3333333333b

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