r-2.8=-6.3

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Solution for r-2.8=-6.3 equation: 


Simplifying
r + -2.8 = -6.3

Reorder the terms:
-2.8 + r = -6.3

Solving
-2.8 + r = -6.3

Solving for variable 'r'.

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

Add '2.8' to each side of the equation.
-2.8 + 2.8 + r = -6.3 + 2.8

Combine like terms: -2.8 + 2.8 = 0.0
0.0 + r = -6.3 + 2.8
r = -6.3 + 2.8

Combine like terms: -6.3 + 2.8 = -3.5
r = -3.5

Simplifying
r = -3.5

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