4x+5x=69

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Solution for 4x+5x=69 equation: 


Simplifying
4x + 5x = 69

Combine like terms: 4x + 5x = 9x
9x = 69

Solving
9x = 69

Solving for variable 'x'.

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

Divide each side by '9'.
x = 7.666666667

Simplifying
x = 7.666666667

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