0.25(4+20r)-8r=-5

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Solution for 0.25(4+20r)-8r=-5 equation: 


Simplifying
0.25(4 + 20r) + -8r = -5
(4 * 0.25 + 20r * 0.25) + -8r = -5
(1 + 5r) + -8r = -5

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

Solving
1 + -3r = -5

Solving for variable 'r'.

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

Add '-1' to each side of the equation.
1 + -1 + -3r = -5 + -1

Combine like terms: 1 + -1 = 0
0 + -3r = -5 + -1
-3r = -5 + -1

Combine like terms: -5 + -1 = -6
-3r = -6

Divide each side by '-3'.
r = 2

Simplifying
r = 2

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