x+84=120

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Solution for x+84=120 equation: 


Simplifying
x + 84 = 120

Reorder the terms:
84 + x = 120

Solving
84 + x = 120

Solving for variable 'x'.

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

Add '-84' to each side of the equation.
84 + -84 + x = 120 + -84

Combine like terms: 84 + -84 = 0
0 + x = 120 + -84
x = 120 + -84

Combine like terms: 120 + -84 = 36
x = 36

Simplifying
x = 36

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