3y(3x+7y)=

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Solution for 3y(3x+7y)= equation: 


Simplifying
3y(3x + 7y) = 0
(3x * 3y + 7y * 3y) = 0
(9xy + 21y2) = 0

Solving
9xy + 21y2 = 0

Solving for variable 'x'.

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

Add '-21y2' to each side of the equation.
9xy + 21y2 + -21y2 = 0 + -21y2

Combine like terms: 21y2 + -21y2 = 0
9xy + 0 = 0 + -21y2
9xy = 0 + -21y2
Remove the zero:
9xy = -21y2

Divide each side by '9y'.
x = -2.333333333y

Simplifying
x = -2.333333333y

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