3(3+4r)=-51

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Solution for 3(3+4r)=-51 equation: 


Simplifying
3(3 + 4r) = -51
(3 * 3 + 4r * 3) = -51
(9 + 12r) = -51

Solving
9 + 12r = -51

Solving for variable 'r'.

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

Add '-9' to each side of the equation.
9 + -9 + 12r = -51 + -9

Combine like terms: 9 + -9 = 0
0 + 12r = -51 + -9
12r = -51 + -9

Combine like terms: -51 + -9 = -60
12r = -60

Divide each side by '12'.
r = -5

Simplifying
r = -5

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