4+2+2z=12

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Solution for 4+2+2z=12 equation: 


Simplifying
4 + 2 + 2z = 12

Combine like terms: 4 + 2 = 6
6 + 2z = 12

Solving
6 + 2z = 12

Solving for variable 'z'.

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

Add '-6' to each side of the equation.
6 + -6 + 2z = 12 + -6

Combine like terms: 6 + -6 = 0
0 + 2z = 12 + -6
2z = 12 + -6

Combine like terms: 12 + -6 = 6
2z = 6

Divide each side by '2'.
z = 3

Simplifying
z = 3

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