-3+8+(-2z)=-12

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Solution for -3+8+(-2z)=-12 equation: 


Simplifying
-3 + 8 + (-2z) = -12

Combine like terms: -3 + 8 = 5
5 + (-2z) = -12

Solving
5 + (-2z) = -12

Solving for variable 'z'.

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

Add '-5' to each side of the equation.
5 + -5 + (-2z) = -12 + -5

Combine like terms: 5 + -5 = 0
0 + (-2z) = -12 + -5
(-2z) = -12 + -5

Combine like terms: -12 + -5 = -17
(-2z) = -17

Divide each side by '-2'.
z = 8.5

Simplifying
z = 8.5

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