3(4-z)=12

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Solution for 3(4-z)=12 equation: 


Simplifying
3(4 + -1z) = 12
(4 * 3 + -1z * 3) = 12
(12 + -3z) = 12

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

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

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

Solving
-3z = 0

Solving for variable 'z'.

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

Divide each side by '-3'.
z = 0

Simplifying
z = 0

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