2x-4=9a

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Solution for 2x-4=9a equation: 


Simplifying
2x + -4 = 9a

Reorder the terms:
-4 + 2x = 9a

Solving
-4 + 2x = 9a

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 2x = 4 + 9a

Combine like terms: -4 + 4 = 0
0 + 2x = 4 + 9a
2x = 4 + 9a

Divide each side by '2'.
x = 2 + 4.5a

Simplifying
x = 2 + 4.5a

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