a+8.40=11.55

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Solution for a+8.40=11.55 equation: 


Simplifying
a + 8.40 = 11.55

Reorder the terms:
8.40 + a = 11.55

Solving
8.40 + a = 11.55

Solving for variable 'a'.

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

Add '-8.40' to each side of the equation.
8.40 + -8.40 + a = 11.55 + -8.40

Combine like terms: 8.40 + -8.40 = 0.00
0.00 + a = 11.55 + -8.40
a = 11.55 + -8.40

Combine like terms: 11.55 + -8.40 = 3.15
a = 3.15

Simplifying
a = 3.15

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