8.5a+13=81

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Solution for 8.5a+13=81 equation: 


Simplifying
8.5a + 13 = 81

Reorder the terms:
13 + 8.5a = 81

Solving
13 + 8.5a = 81

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 + 8.5a = 81 + -13

Combine like terms: 13 + -13 = 0
0 + 8.5a = 81 + -13
8.5a = 81 + -13

Combine like terms: 81 + -13 = 68
8.5a = 68

Divide each side by '8.5'.
a = 8

Simplifying
a = 8

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