7-2+X=18

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Solution for 7-2+X=18 equation: 


Simplifying
7 + -2 + X = 18

Combine like terms: 7 + -2 = 5
5 + X = 18

Solving
5 + X = 18

Solving for variable 'X'.

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

Add '-5' to each side of the equation.
5 + -5 + X = 18 + -5

Combine like terms: 5 + -5 = 0
0 + X = 18 + -5
X = 18 + -5

Combine like terms: 18 + -5 = 13
X = 13

Simplifying
X = 13

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