a=0.7a+12

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Solution for a=0.7a+12 equation: 


Simplifying
a = 0.7a + 12

Reorder the terms:
a = 12 + 0.7a

Solving
a = 12 + 0.7a

Solving for variable 'a'.

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

Add '-0.7a' to each side of the equation.
a + -0.7a = 12 + 0.7a + -0.7a

Combine like terms: a + -0.7a = 0.3a
0.3a = 12 + 0.7a + -0.7a

Combine like terms: 0.7a + -0.7a = 0.0
0.3a = 12 + 0.0
0.3a = 12

Divide each side by '0.3'.
a = 40

Simplifying
a = 40

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