a+0.81=-3

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Solution for a+0.81=-3 equation: 


Simplifying
a + 0.81 = -3

Reorder the terms:
0.81 + a = -3

Solving
0.81 + a = -3

Solving for variable 'a'.

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

Add '-0.81' to each side of the equation.
0.81 + -0.81 + a = -3 + -0.81

Combine like terms: 0.81 + -0.81 = 0.00
0.00 + a = -3 + -0.81
a = -3 + -0.81

Combine like terms: -3 + -0.81 = -3.81
a = -3.81

Simplifying
a = -3.81

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