X+4=r

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Solution for X+4=r equation: 


Simplifying
X + 4 = r

Reorder the terms:
4 + X = r

Solving
4 + X = r

Solving for variable 'X'.

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

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

Combine like terms: 4 + -4 = 0
0 + X = -4 + r
X = -4 + r

Simplifying
X = -4 + r

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