r+6.4=-1.6

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Solution for r+6.4=-1.6 equation: 


Simplifying
r + 6.4 = -1.6

Reorder the terms:
6.4 + r = -1.6

Solving
6.4 + r = -1.6

Solving for variable 'r'.

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

Add '-6.4' to each side of the equation.
6.4 + -6.4 + r = -1.6 + -6.4

Combine like terms: 6.4 + -6.4 = 0.0
0.0 + r = -1.6 + -6.4
r = -1.6 + -6.4

Combine like terms: -1.6 + -6.4 = -8
r = -8

Simplifying
r = -8

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