10x-21=81

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Solution for 10x-21=81 equation: 


Simplifying
10x + -21 = 81

Reorder the terms:
-21 + 10x = 81

Solving
-21 + 10x = 81

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 + 10x = 81 + 21

Combine like terms: -21 + 21 = 0
0 + 10x = 81 + 21
10x = 81 + 21

Combine like terms: 81 + 21 = 102
10x = 102

Divide each side by '10'.
x = 10.2

Simplifying
x = 10.2

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