5(1-2r)=85

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Solution for 5(1-2r)=85 equation: 


Simplifying
5(1 + -2r) = 85
(1 * 5 + -2r * 5) = 85
(5 + -10r) = 85

Solving
5 + -10r = 85

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 + -10r = 85 + -5

Combine like terms: 5 + -5 = 0
0 + -10r = 85 + -5
-10r = 85 + -5

Combine like terms: 85 + -5 = 80
-10r = 80

Divide each side by '-10'.
r = -8

Simplifying
r = -8

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