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

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


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

Reorder the terms:
8 + -3z + (-2z) = -12

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

Solving
8 + -5z = -12

Solving for variable 'z'.

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

Add '-8' to each side of the equation.
8 + -8 + -5z = -12 + -8

Combine like terms: 8 + -8 = 0
0 + -5z = -12 + -8
-5z = -12 + -8

Combine like terms: -12 + -8 = -20
-5z = -20

Divide each side by '-5'.
z = 4

Simplifying
z = 4

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