4+X=15

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Solution for 4+X=15 equation: 


Simplifying
4 + X = 15

Solving
4 + X = 15

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 = 15 + -4

Combine like terms: 4 + -4 = 0
0 + X = 15 + -4
X = 15 + -4

Combine like terms: 15 + -4 = 11
X = 11

Simplifying
X = 11

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