-18=0.250r+12

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Solution for -18=0.250r+12 equation:


Simplifying
-18 = 0.250r + 12

Reorder the terms:
-18 = 12 + 0.250r

Solving
-18 = 12 + 0.250r

Solving for variable 'r'.

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

Add '-0.250r' to each side of the equation.
-18 + -0.250r = 12 + 0.250r + -0.250r

Combine like terms: 0.250r + -0.250r = 0.000
-18 + -0.250r = 12 + 0.000
-18 + -0.250r = 12

Add '18' to each side of the equation.
-18 + 18 + -0.250r = 12 + 18

Combine like terms: -18 + 18 = 0
0 + -0.250r = 12 + 18
-0.250r = 12 + 18

Combine like terms: 12 + 18 = 30
-0.250r = 30

Divide each side by '-0.250'.
r = -120

Simplifying
r = -120

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