r+0.9=-8.2

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Solution for r+0.9=-8.2 equation: 


Simplifying
r + 0.9 = -8.2

Reorder the terms:
0.9 + r = -8.2

Solving
0.9 + r = -8.2

Solving for variable 'r'.

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

Add '-0.9' to each side of the equation.
0.9 + -0.9 + r = -8.2 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + r = -8.2 + -0.9
r = -8.2 + -0.9

Combine like terms: -8.2 + -0.9 = -9.1
r = -9.1

Simplifying
r = -9.1

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