21z=12(2z-2)

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Solution for 21z=12(2z-2) equation:


Simplifying
21z = 12(2z + -2)

Reorder the terms:
21z = 12(-2 + 2z)
21z = (-2 * 12 + 2z * 12)
21z = (-24 + 24z)

Solving
21z = -24 + 24z

Solving for variable 'z'.

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

Add '-24z' to each side of the equation.
21z + -24z = -24 + 24z + -24z

Combine like terms: 21z + -24z = -3z
-3z = -24 + 24z + -24z

Combine like terms: 24z + -24z = 0
-3z = -24 + 0
-3z = -24

Divide each side by '-3'.
z = 8

Simplifying
z = 8

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