9=z+2z

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Solution for 9=z+2z equation:


Simplifying
9 = z + 2z

Combine like terms: z + 2z = 3z
9 = 3z

Solving
9 = 3z

Solving for variable 'z'.

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

Add '-3z' to each side of the equation.
9 + -3z = 3z + -3z

Combine like terms: 3z + -3z = 0
9 + -3z = 0

Add '-9' to each side of the equation.
9 + -9 + -3z = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -3z = 0 + -9
-3z = 0 + -9

Combine like terms: 0 + -9 = -9
-3z = -9

Divide each side by '-3'.
z = 3

Simplifying
z = 3

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