13-X=172

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Solution for 13-X=172 equation: 


Simplifying
13 + -1X = 172

Solving
13 + -1X = 172

Solving for variable 'X'.

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

Add '-13' to each side of the equation.
13 + -13 + -1X = 172 + -13

Combine like terms: 13 + -13 = 0
0 + -1X = 172 + -13
-1X = 172 + -13

Combine like terms: 172 + -13 = 159
-1X = 159

Divide each side by '-1'.
X = -159

Simplifying
X = -159

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