5x+4x=80

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Solution for 5x+4x=80 equation: 


Simplifying
5x + 4x = 80

Combine like terms: 5x + 4x = 9x
9x = 80

Solving
9x = 80

Solving for variable 'x'.

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

Divide each side by '9'.
x = 8.888888889

Simplifying
x = 8.888888889

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