12a+3c=81

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Solution for 12a+3c=81 equation: 


Simplifying
12a + 3c = 81

Solving
12a + 3c = 81

Solving for variable 'a'.

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

Add '-3c' to each side of the equation.
12a + 3c + -3c = 81 + -3c

Combine like terms: 3c + -3c = 0
12a + 0 = 81 + -3c
12a = 81 + -3c

Divide each side by '12'.
a = 6.75 + -0.25c

Simplifying
a = 6.75 + -0.25c

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