21-x=9.2

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Solution for 21-x=9.2 equation: 


Simplifying
21 + -1x = 9.2

Solving
21 + -1x = 9.2

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -1x = 9.2 + -21

Combine like terms: 21 + -21 = 0
0 + -1x = 9.2 + -21
-1x = 9.2 + -21

Combine like terms: 9.2 + -21 = -11.8
-1x = -11.8

Divide each side by '-1'.
x = 11.8

Simplifying
x = 11.8

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