-z=-9-2z

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Solution for -z=-9-2z equation: 


Simplifying
-1z = -9 + -2z

Solving
-1z = -9 + -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.
-1z + 2z = -9 + -2z + 2z

Combine like terms: -1z + 2z = 1z
1z = -9 + -2z + 2z

Combine like terms: -2z + 2z = 0
1z = -9 + 0
1z = -9

Divide each side by '1'.
z = -9

Simplifying
z = -9

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