3(z+9)=12

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Solution for 3(z+9)=12 equation: 


Simplifying
3(z + 9) = 12

Reorder the terms:
3(9 + z) = 12
(9 * 3 + z * 3) = 12
(27 + 3z) = 12

Solving
27 + 3z = 12

Solving for variable 'z'.

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

Add '-27' to each side of the equation.
27 + -27 + 3z = 12 + -27

Combine like terms: 27 + -27 = 0
0 + 3z = 12 + -27
3z = 12 + -27

Combine like terms: 12 + -27 = -15
3z = -15

Divide each side by '3'.
z = -5

Simplifying
z = -5

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