-9.9+a=-25

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Solution for -9.9+a=-25 equation: 


Simplifying
-9.9 + a = -25

Solving
-9.9 + a = -25

Solving for variable 'a'.

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

Add '9.9' to each side of the equation.
-9.9 + 9.9 + a = -25 + 9.9

Combine like terms: -9.9 + 9.9 = 0.0
0.0 + a = -25 + 9.9
a = -25 + 9.9

Combine like terms: -25 + 9.9 = -15.1
a = -15.1

Simplifying
a = -15.1

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