-2r+4=b

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Solution for -2r+4=b equation: 


Simplifying
-2r + 4 = b

Reorder the terms:
4 + -2r = b

Solving
4 + -2r = b

Solving for variable 'r'.

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

Add '-4' to each side of the equation.
4 + -4 + -2r = -4 + b

Combine like terms: 4 + -4 = 0
0 + -2r = -4 + b
-2r = -4 + b

Divide each side by '-2'.
r = 2 + -0.5b

Simplifying
r = 2 + -0.5b

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