4x+r=b

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Solution for 4x+r=b equation: 


Simplifying
4x + r = b

Reorder the terms:
r + 4x = b

Solving
r + 4x = b

Solving for variable 'r'.

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

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

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

Simplifying
r = b + -4x

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