x+(-12)=54

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Solution for x+(-12)=54 equation: 


Simplifying
x + (-12) = 54
x + -12 = 54

Reorder the terms:
-12 + x = 54

Solving
-12 + x = 54

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + x = 54 + 12

Combine like terms: -12 + 12 = 0
0 + x = 54 + 12
x = 54 + 12

Combine like terms: 54 + 12 = 66
x = 66

Simplifying
x = 66

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