-3(1-5r)=-108

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Solution for -3(1-5r)=-108 equation: 


Simplifying
-3(1 + -5r) = -108
(1 * -3 + -5r * -3) = -108
(-3 + 15r) = -108

Solving
-3 + 15r = -108

Solving for variable 'r'.

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

Add '3' to each side of the equation.
-3 + 3 + 15r = -108 + 3

Combine like terms: -3 + 3 = 0
0 + 15r = -108 + 3
15r = -108 + 3

Combine like terms: -108 + 3 = -105
15r = -105

Divide each side by '15'.
r = -7

Simplifying
r = -7

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