a+15=3.1

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Solution for a+15=3.1 equation: 


Simplifying
a + 15 = 3.1

Reorder the terms:
15 + a = 3.1

Solving
15 + a = 3.1

Solving for variable 'a'.

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

Add '-15' to each side of the equation.
15 + -15 + a = 3.1 + -15

Combine like terms: 15 + -15 = 0
0 + a = 3.1 + -15
a = 3.1 + -15

Combine like terms: 3.1 + -15 = -11.9
a = -11.9

Simplifying
a = -11.9

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