r-8.4=-7.7

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Solution for r-8.4=-7.7 equation: 


Simplifying
r + -8.4 = -7.7

Reorder the terms:
-8.4 + r = -7.7

Solving
-8.4 + r = -7.7

Solving for variable 'r'.

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

Add '8.4' to each side of the equation.
-8.4 + 8.4 + r = -7.7 + 8.4

Combine like terms: -8.4 + 8.4 = 0.0
0.0 + r = -7.7 + 8.4
r = -7.7 + 8.4

Combine like terms: -7.7 + 8.4 = 0.7
r = 0.7

Simplifying
r = 0.7

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