-8r-5(1-4r)=

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Solution for -8r-5(1-4r)= equation:


Simplifying
-8r + -5(1 + -4r) = 0
-8r + (1 * -5 + -4r * -5) = 0
-8r + (-5 + 20r) = 0

Reorder the terms:
-5 + -8r + 20r = 0

Combine like terms: -8r + 20r = 12r
-5 + 12r = 0

Solving
-5 + 12r = 0

Solving for variable 'r'.

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

Add '5' to each side of the equation.
-5 + 5 + 12r = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 12r = 0 + 5
12r = 0 + 5

Combine like terms: 0 + 5 = 5
12r = 5

Divide each side by '12'.
r = 0.4166666667

Simplifying
r = 0.4166666667

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