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

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


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

Solving
-5 = 1 + 5r + -8t

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 = 1 + 5r + -5r + -8t

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

Add '5' to each side of the equation.
-5 + 5 + -5r = 1 + 5 + -8t

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

Combine like terms: 1 + 5 = 6
-5r = 6 + -8t

Divide each side by '-5'.
r = -1.2 + 1.6t

Simplifying
r = -1.2 + 1.6t

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