-(r-8)=5

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Solution for -(r-8)=5 equation: 


Simplifying
-1(r + -8) = 5

Reorder the terms:
-1(-8 + r) = 5
(-8 * -1 + r * -1) = 5
(8 + -1r) = 5

Solving
8 + -1r = 5

Solving for variable 'r'.

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

Add '-8' to each side of the equation.
8 + -8 + -1r = 5 + -8

Combine like terms: 8 + -8 = 0
0 + -1r = 5 + -8
-1r = 5 + -8

Combine like terms: 5 + -8 = -3
-1r = -3

Divide each side by '-1'.
r = 3

Simplifying
r = 3

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