-2(3+5r)=-86

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Solution for -2(3+5r)=-86 equation: 


Simplifying
-2(3 + 5r) = -86
(3 * -2 + 5r * -2) = -86
(-6 + -10r) = -86

Solving
-6 + -10r = -86

Solving for variable 'r'.

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

Add '6' to each side of the equation.
-6 + 6 + -10r = -86 + 6

Combine like terms: -6 + 6 = 0
0 + -10r = -86 + 6
-10r = -86 + 6

Combine like terms: -86 + 6 = -80
-10r = -80

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

Simplifying
r = 8

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