X+91=100

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Solution for X+91=100 equation: 


Simplifying
X + 91 = 100

Reorder the terms:
91 + X = 100

Solving
91 + X = 100

Solving for variable 'X'.

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

Add '-91' to each side of the equation.
91 + -91 + X = 100 + -91

Combine like terms: 91 + -91 = 0
0 + X = 100 + -91
X = 100 + -91

Combine like terms: 100 + -91 = 9
X = 9

Simplifying
X = 9

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