a+5.7=18.9

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Solution for a+5.7=18.9 equation: 


Simplifying
a + 5.7 = 18.9

Reorder the terms:
5.7 + a = 18.9

Solving
5.7 + a = 18.9

Solving for variable 'a'.

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

Add '-5.7' to each side of the equation.
5.7 + -5.7 + a = 18.9 + -5.7

Combine like terms: 5.7 + -5.7 = 0.0
0.0 + a = 18.9 + -5.7
a = 18.9 + -5.7

Combine like terms: 18.9 + -5.7 = 13.2
a = 13.2

Simplifying
a = 13.2

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