3(r-5)=-12

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Solution for 3(r-5)=-12 equation: 


Simplifying
3(r + -5) = -12

Reorder the terms:
3(-5 + r) = -12
(-5 * 3 + r * 3) = -12
(-15 + 3r) = -12

Solving
-15 + 3r = -12

Solving for variable 'r'.

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

Add '15' to each side of the equation.
-15 + 15 + 3r = -12 + 15

Combine like terms: -15 + 15 = 0
0 + 3r = -12 + 15
3r = -12 + 15

Combine like terms: -12 + 15 = 3
3r = 3

Divide each side by '3'.
r = 1

Simplifying
r = 1

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