x-0.3=21

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Solution for x-0.3=21 equation: 


Simplifying
x + -0.3 = 21

Reorder the terms:
-0.3 + x = 21

Solving
-0.3 + x = 21

Solving for variable 'x'.

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

Add '0.3' to each side of the equation.
-0.3 + 0.3 + x = 21 + 0.3

Combine like terms: -0.3 + 0.3 = 0.0
0.0 + x = 21 + 0.3
x = 21 + 0.3

Combine like terms: 21 + 0.3 = 21.3
x = 21.3

Simplifying
x = 21.3

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