-3(r-15)=-12

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Solution for -3(r-15)=-12 equation:


Simplifying
-3(r + -15) = -12

Reorder the terms:
-3(-15 + r) = -12
(-15 * -3 + r * -3) = -12
(45 + -3r) = -12

Solving
45 + -3r = -12

Solving for variable 'r'.

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

Add '-45' to each side of the equation.
45 + -45 + -3r = -12 + -45

Combine like terms: 45 + -45 = 0
0 + -3r = -12 + -45
-3r = -12 + -45

Combine like terms: -12 + -45 = -57
-3r = -57

Divide each side by '-3'.
r = 19

Simplifying
r = 19

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