7.7a+12=81.3

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Solution for 7.7a+12=81.3 equation: 


Simplifying
7.7a + 12 = 81.3

Reorder the terms:
12 + 7.7a = 81.3

Solving
12 + 7.7a = 81.3

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + 7.7a = 81.3 + -12

Combine like terms: 12 + -12 = 0
0 + 7.7a = 81.3 + -12
7.7a = 81.3 + -12

Combine like terms: 81.3 + -12 = 69.3
7.7a = 69.3

Divide each side by '7.7'.
a = 9

Simplifying
a = 9

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