x+9.9=2.1

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Solution for x+9.9=2.1 equation: 


Simplifying
x + 9.9 = 2.1

Reorder the terms:
9.9 + x = 2.1

Solving
9.9 + x = 2.1

Solving for variable 'x'.

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

Add '-9.9' to each side of the equation.
9.9 + -9.9 + x = 2.1 + -9.9

Combine like terms: 9.9 + -9.9 = 0.0
0.0 + x = 2.1 + -9.9
x = 2.1 + -9.9

Combine like terms: 2.1 + -9.9 = -7.8
x = -7.8

Simplifying
x = -7.8

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