x-8.5=12

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Solution for x-8.5=12 equation: 


Simplifying
x + -8.5 = 12

Reorder the terms:
-8.5 + x = 12

Solving
-8.5 + x = 12

Solving for variable 'x'.

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

Add '8.5' to each side of the equation.
-8.5 + 8.5 + x = 12 + 8.5

Combine like terms: -8.5 + 8.5 = 0.0
0.0 + x = 12 + 8.5
x = 12 + 8.5

Combine like terms: 12 + 8.5 = 20.5
x = 20.5

Simplifying
x = 20.5

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