3(Z+6)=21

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Solution for 3(Z+6)=21 equation: 


Simplifying
3(Z + 6) = 21

Reorder the terms:
3(6 + Z) = 21
(6 * 3 + Z * 3) = 21
(18 + 3Z) = 21

Solving
18 + 3Z = 21

Solving for variable 'Z'.

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

Add '-18' to each side of the equation.
18 + -18 + 3Z = 21 + -18

Combine like terms: 18 + -18 = 0
0 + 3Z = 21 + -18
3Z = 21 + -18

Combine like terms: 21 + -18 = 3
3Z = 3

Divide each side by '3'.
Z = 1

Simplifying
Z = 1

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