4y+9x=81

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Solution for 4y+9x=81 equation: 


Simplifying
4y + 9x = 81

Reorder the terms:
9x + 4y = 81

Solving
9x + 4y = 81

Solving for variable 'x'.

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

Add '-4y' to each side of the equation.
9x + 4y + -4y = 81 + -4y

Combine like terms: 4y + -4y = 0
9x + 0 = 81 + -4y
9x = 81 + -4y

Divide each side by '9'.
x = 9 + -0.4444444444y

Simplifying
x = 9 + -0.4444444444y

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