-(-6.9+x)=8.1

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Solution for -(-6.9+x)=8.1 equation: 


Simplifying
-1(-6.9 + x) = 8.1
(-6.9 * -1 + x * -1) = 8.1
(6.9 + -1x) = 8.1

Solving
6.9 + -1x = 8.1

Solving for variable 'x'.

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

Add '-6.9' to each side of the equation.
6.9 + -6.9 + -1x = 8.1 + -6.9

Combine like terms: 6.9 + -6.9 = 0.0
0.0 + -1x = 8.1 + -6.9
-1x = 8.1 + -6.9

Combine like terms: 8.1 + -6.9 = 1.2
-1x = 1.2

Divide each side by '-1'.
x = -1.2

Simplifying
x = -1.2

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