X+40=128

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Solution for X+40=128 equation: 


Simplifying
X + 40 = 128

Reorder the terms:
40 + X = 128

Solving
40 + X = 128

Solving for variable 'X'.

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

Add '-40' to each side of the equation.
40 + -40 + X = 128 + -40

Combine like terms: 40 + -40 = 0
0 + X = 128 + -40
X = 128 + -40

Combine like terms: 128 + -40 = 88
X = 88

Simplifying
X = 88

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