81+x=18

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Solution for 81+x=18 equation: 


Simplifying
81 + x = 18

Solving
81 + x = 18

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 = 18 + -81

Combine like terms: 81 + -81 = 0
0 + x = 18 + -81
x = 18 + -81

Combine like terms: 18 + -81 = -63
x = -63

Simplifying
x = -63

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