-3(r-4)=0

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Solution for -3(r-4)=0 equation: 


Simplifying
-3(r + -4) = 0

Reorder the terms:
-3(-4 + r) = 0
(-4 * -3 + r * -3) = 0
(12 + -3r) = 0

Solving
12 + -3r = 0

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -12 + -3r = 0 + -12

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

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

Divide each side by '-3'.
r = 4

Simplifying
r = 4

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