-3(2+4r)=-102

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Solution for -3(2+4r)=-102 equation: 


Simplifying
-3(2 + 4r) = -102
(2 * -3 + 4r * -3) = -102
(-6 + -12r) = -102

Solving
-6 + -12r = -102

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 + -12r = -102 + 6

Combine like terms: -6 + 6 = 0
0 + -12r = -102 + 6
-12r = -102 + 6

Combine like terms: -102 + 6 = -96
-12r = -96

Divide each side by '-12'.
r = 8

Simplifying
r = 8

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