-8.7+x=12

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Solution for -8.7+x=12 equation: 


Simplifying
-8.7 + x = 12

Solving
-8.7 + x = 12

Solving for variable 'x'.

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

Add '8.7' to each side of the equation.
-8.7 + 8.7 + x = 12 + 8.7

Combine like terms: -8.7 + 8.7 = 0.0
0.0 + x = 12 + 8.7
x = 12 + 8.7

Combine like terms: 12 + 8.7 = 20.7
x = 20.7

Simplifying
x = 20.7

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