, ,

When three variable quantities have a constant ratio, their relationship is called a direct variation. It is said that one variable varies directly as the other two vary. The formula for direct variation is , where is the constant of variation.

Solve the equation for , the constant of variation.

Find the Equation of Variation x-2y+5z=-6 , x+2y+3z=0 , x+3y^2z=5