21=0.10*x

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Solution for 21=0.10*x equation:


Simplifying
21 = 0.10x

Solving
21 = 0.10x

Solving for variable 'x'.

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

Add '-0.10x' to each side of the equation.
21 + -0.10x = 0.10x + -0.10x

Combine like terms: 0.10x + -0.10x = 0.00
21 + -0.10x = 0.00

Add '-21' to each side of the equation.
21 + -21 + -0.10x = 0.00 + -21

Combine like terms: 21 + -21 = 0
0 + -0.10x = 0.00 + -21
-0.10x = 0.00 + -21

Combine like terms: 0.00 + -21 = -21
-0.10x = -21

Divide each side by '-0.10'.
x = 210

Simplifying
x = 210

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