12+3z=57

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Solution for 12+3z=57 equation: 


Simplifying
12 + 3z = 57

Solving
12 + 3z = 57

Solving for variable 'z'.

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

Add '-12' to each side of the equation.
12 + -12 + 3z = 57 + -12

Combine like terms: 12 + -12 = 0
0 + 3z = 57 + -12
3z = 57 + -12

Combine like terms: 57 + -12 = 45
3z = 45

Divide each side by '3'.
z = 15

Simplifying
z = 15

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