20.5=x+11.5

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Solution for 20.5=x+11.5 equation:


Simplifying
20.5 = x + 11.5

Reorder the terms:
20.5 = 11.5 + x

Solving
20.5 = 11.5 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
20.5 + -1x = 11.5 + x + -1x

Combine like terms: x + -1x = 0
20.5 + -1x = 11.5 + 0
20.5 + -1x = 11.5

Add '-20.5' to each side of the equation.
20.5 + -20.5 + -1x = 11.5 + -20.5

Combine like terms: 20.5 + -20.5 = 0.0
0.0 + -1x = 11.5 + -20.5
-1x = 11.5 + -20.5

Combine like terms: 11.5 + -20.5 = -9
-1x = -9

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

Simplifying
x = 9

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