-2*r+8=5

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Solution for -2*r+8=5 equation: 


Simplifying
-2r + 8 = 5

Reorder the terms:
8 + -2r = 5

Solving
8 + -2r = 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 + -2r = 5 + -8

Combine like terms: 8 + -8 = 0
0 + -2r = 5 + -8
-2r = 5 + -8

Combine like terms: 5 + -8 = -3
-2r = -3

Divide each side by '-2'.
r = 1.5

Simplifying
r = 1.5

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