3(z-12)=9

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


Simplifying
3(z + -12) = 9

Reorder the terms:
3(-12 + z) = 9
(-12 * 3 + z * 3) = 9
(-36 + 3z) = 9

Solving
-36 + 3z = 9

Solving for variable 'z'.

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

Add '36' to each side of the equation.
-36 + 36 + 3z = 9 + 36

Combine like terms: -36 + 36 = 0
0 + 3z = 9 + 36
3z = 9 + 36

Combine like terms: 9 + 36 = 45
3z = 45

Divide each side by '3'.
z = 15

Simplifying
z = 15

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