8.1a+13=102.1

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Solution for 8.1a+13=102.1 equation: 


Simplifying
8.1a + 13 = 102.1

Reorder the terms:
13 + 8.1a = 102.1

Solving
13 + 8.1a = 102.1

Solving for variable 'a'.

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

Add '-13' to each side of the equation.
13 + -13 + 8.1a = 102.1 + -13

Combine like terms: 13 + -13 = 0
0 + 8.1a = 102.1 + -13
8.1a = 102.1 + -13

Combine like terms: 102.1 + -13 = 89.1
8.1a = 89.1

Divide each side by '8.1'.
a = 11

Simplifying
a = 11

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