X+12=140

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Solution for X+12=140 equation: 


Simplifying
X + 12 = 140

Reorder the terms:
12 + X = 140

Solving
12 + X = 140

Solving for variable 'X'.

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

Add '-12' to each side of the equation.
12 + -12 + X = 140 + -12

Combine like terms: 12 + -12 = 0
0 + X = 140 + -12
X = 140 + -12

Combine like terms: 140 + -12 = 128
X = 128

Simplifying
X = 128

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