21z-2=34+9z

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Solution for 21z-2=34+9z equation:


Simplifying
21z + -2 = 34 + 9z

Reorder the terms:
-2 + 21z = 34 + 9z

Solving
-2 + 21z = 34 + 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
-2 + 21z + -9z = 34 + 9z + -9z

Combine like terms: 21z + -9z = 12z
-2 + 12z = 34 + 9z + -9z

Combine like terms: 9z + -9z = 0
-2 + 12z = 34 + 0
-2 + 12z = 34

Add '2' to each side of the equation.
-2 + 2 + 12z = 34 + 2

Combine like terms: -2 + 2 = 0
0 + 12z = 34 + 2
12z = 34 + 2

Combine like terms: 34 + 2 = 36
12z = 36

Divide each side by '12'.
z = 3

Simplifying
z = 3

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