3x-9=28.2

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Solution for 3x-9=28.2 equation: 


Simplifying
3x + -9 = 28.2

Reorder the terms:
-9 + 3x = 28.2

Solving
-9 + 3x = 28.2

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 3x = 28.2 + 9

Combine like terms: -9 + 9 = 0
0 + 3x = 28.2 + 9
3x = 28.2 + 9

Combine like terms: 28.2 + 9 = 37.2
3x = 37.2

Divide each side by '3'.
x = 12.4

Simplifying
x = 12.4

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