-x+20=11

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Solution for -x+20=11 equation: 


Simplifying
-1x + 20 = 11

Reorder the terms:
20 + -1x = 11

Solving
20 + -1x = 11

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + -1x = 11 + -20

Combine like terms: 20 + -20 = 0
0 + -1x = 11 + -20
-1x = 11 + -20

Combine like terms: 11 + -20 = -9
-1x = -9

Divide each side by '-1'.
x = 9

Simplifying
x = 9

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