z=2z-y

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Solution for z=2z-y equation: 


Simplifying
z = 2z + -1y

Reorder the terms:
z = -1y + 2z

Solving
z = -1y + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
z + -2z = -1y + 2z + -2z

Combine like terms: z + -2z = -1z
-1z = -1y + 2z + -2z

Combine like terms: 2z + -2z = 0
-1z = -1y + 0
-1z = -1y

Divide each side by '-1'.
z = y

Simplifying
z = y

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