-9r+12=-25

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Solution for -9r+12=-25 equation: 


Simplifying
-9r + 12 = -25

Reorder the terms:
12 + -9r = -25

Solving
12 + -9r = -25

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 + -9r = -25 + -12

Combine like terms: 12 + -12 = 0
0 + -9r = -25 + -12
-9r = -25 + -12

Combine like terms: -25 + -12 = -37
-9r = -37

Divide each side by '-9'.
r = 4.111111111

Simplifying
r = 4.111111111

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