3a+c=k

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Solution for 3a+c=k equation: 


Simplifying
3a + c = k

Solving
3a + c = k

Solving for variable 'a'.

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

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

Combine like terms: c + -1c = 0
3a + 0 = -1c + k
3a = -1c + k

Divide each side by '3'.
a = -0.3333333333c + 0.3333333333k

Simplifying
a = -0.3333333333c + 0.3333333333k

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