X-79=42

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Solution for X-79=42 equation: 


Simplifying
X + -79 = 42

Reorder the terms:
-79 + X = 42

Solving
-79 + X = 42

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 = 42 + 79

Combine like terms: -79 + 79 = 0
0 + X = 42 + 79
X = 42 + 79

Combine like terms: 42 + 79 = 121
X = 121

Simplifying
X = 121

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