-3+7-3r-12=

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Solution for -3+7-3r-12= equation: 


Simplifying
-3 + 7 + -3r + -12 = 0

Reorder the terms:
-3 + 7 + -12 + -3r = 0

Combine like terms: -3 + 7 = 4
4 + -12 + -3r = 0

Combine like terms: 4 + -12 = -8
-8 + -3r = 0

Solving
-8 + -3r = 0

Solving for variable 'r'.

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

Add '8' to each side of the equation.
-8 + 8 + -3r = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -3r = 0 + 8
-3r = 0 + 8

Combine like terms: 0 + 8 = 8
-3r = 8

Divide each side by '-3'.
r = -2.666666667

Simplifying
r = -2.666666667

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