x+81=78

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Solution for x+81=78 equation: 


Simplifying
x + 81 = 78

Reorder the terms:
81 + x = 78

Solving
81 + x = 78

Solving for variable 'x'.

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

Add '-81' to each side of the equation.
81 + -81 + x = 78 + -81

Combine like terms: 81 + -81 = 0
0 + x = 78 + -81
x = 78 + -81

Combine like terms: 78 + -81 = -3
x = -3

Simplifying
x = -3

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