7.8a+11=81.2

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Solution for 7.8a+11=81.2 equation: 


Simplifying
7.8a + 11 = 81.2

Reorder the terms:
11 + 7.8a = 81.2

Solving
11 + 7.8a = 81.2

Solving for variable 'a'.

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

Add '-11' to each side of the equation.
11 + -11 + 7.8a = 81.2 + -11

Combine like terms: 11 + -11 = 0
0 + 7.8a = 81.2 + -11
7.8a = 81.2 + -11

Combine like terms: 81.2 + -11 = 70.2
7.8a = 70.2

Divide each side by '7.8'.
a = 9

Simplifying
a = 9

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