3z-9=z+3

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Solution for 3z-9=z+3 equation:


Simplifying
3z + -9 = z + 3

Reorder the terms:
-9 + 3z = z + 3

Reorder the terms:
-9 + 3z = 3 + z

Solving
-9 + 3z = 3 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
-9 + 3z + -1z = 3 + z + -1z

Combine like terms: 3z + -1z = 2z
-9 + 2z = 3 + z + -1z

Combine like terms: z + -1z = 0
-9 + 2z = 3 + 0
-9 + 2z = 3

Add '9' to each side of the equation.
-9 + 9 + 2z = 3 + 9

Combine like terms: -9 + 9 = 0
0 + 2z = 3 + 9
2z = 3 + 9

Combine like terms: 3 + 9 = 12
2z = 12

Divide each side by '2'.
z = 6

Simplifying
z = 6

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