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

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


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

Reorder the terms:
-5 = 1 + -8 + 5r

Combine like terms: 1 + -8 = -7
-5 = -7 + 5r

Solving
-5 = -7 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
-5 + -5r = -7 + 5r + -5r

Combine like terms: 5r + -5r = 0
-5 + -5r = -7 + 0
-5 + -5r = -7

Add '5' to each side of the equation.
-5 + 5 + -5r = -7 + 5

Combine like terms: -5 + 5 = 0
0 + -5r = -7 + 5
-5r = -7 + 5

Combine like terms: -7 + 5 = -2
-5r = -2

Divide each side by '-5'.
r = 0.4

Simplifying
r = 0.4

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