12a=5a+84

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Solution for 12a=5a+84 equation: 


Simplifying
12a = 5a + 84

Reorder the terms:
12a = 84 + 5a

Solving
12a = 84 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
12a + -5a = 84 + 5a + -5a

Combine like terms: 12a + -5a = 7a
7a = 84 + 5a + -5a

Combine like terms: 5a + -5a = 0
7a = 84 + 0
7a = 84

Divide each side by '7'.
a = 12

Simplifying
a = 12

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