(3x-9)=45

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Solution for (3x-9)=45 equation: 


Simplifying
(3x + -9) = 45

Reorder the terms:
(-9 + 3x) = 45

Remove parenthesis around (-9 + 3x)
-9 + 3x = 45

Solving
-9 + 3x = 45

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 = 45 + 9

Combine like terms: -9 + 9 = 0
0 + 3x = 45 + 9
3x = 45 + 9

Combine like terms: 45 + 9 = 54
3x = 54

Divide each side by '3'.
x = 18

Simplifying
x = 18

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