3x-9x+15y+6y=0

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Solution for 3x-9x+15y+6y=0 equation:


Simplifying
3x + -9x + 15y + 6y = 0

Combine like terms: 3x + -9x = -6x
-6x + 15y + 6y = 0

Combine like terms: 15y + 6y = 21y
-6x + 21y = 0

Solving
-6x + 21y = 0

Solving for variable 'x'.

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

Add '-21y' to each side of the equation.
-6x + 21y + -21y = 0 + -21y

Combine like terms: 21y + -21y = 0
-6x + 0 = 0 + -21y
-6x = 0 + -21y
Remove the zero:
-6x = -21y

Divide each side by '-6'.
x = 3.5y

Simplifying
x = 3.5y

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