x+3+84=

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Solution for x+3+84= equation: 


Simplifying
x + 3 + 84 = 0

Reorder the terms:
3 + 84 + x = 0

Combine like terms: 3 + 84 = 87
87 + x = 0

Solving
87 + x = 0

Solving for variable 'x'.

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

Add '-87' to each side of the equation.
87 + -87 + x = 0 + -87

Combine like terms: 87 + -87 = 0
0 + x = 0 + -87
x = 0 + -87

Combine like terms: 0 + -87 = -87
x = -87

Simplifying
x = -87

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