X+79=100

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Solution for X+79=100 equation: 


Simplifying
X + 79 = 100

Reorder the terms:
79 + X = 100

Solving
79 + X = 100

Solving for variable 'X'.

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

Add '-79' to each side of the equation.
79 + -79 + X = 100 + -79

Combine like terms: 79 + -79 = 0
0 + X = 100 + -79
X = 100 + -79

Combine like terms: 100 + -79 = 21
X = 21

Simplifying
X = 21

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