9x=40+4x

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Solution for 9x=40+4x equation: 


Simplifying
9x = 40 + 4x

Solving
9x = 40 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
9x + -4x = 40 + 4x + -4x

Combine like terms: 9x + -4x = 5x
5x = 40 + 4x + -4x

Combine like terms: 4x + -4x = 0
5x = 40 + 0
5x = 40

Divide each side by '5'.
x = 8

Simplifying
x = 8

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