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2=-6z+2(-z-1)
We simplify the equation to the form, which is simple to understand
2=-6z+2(-z-1)
Reorder the terms in parentheses
2=-6z+(-2z-2)
Remove unnecessary parentheses
+2=-6z-2z-2
We move all terms containing z to the left and all other terms to the right.
+6z+2z=-2-2
We simplify left and right side of the equation.
+8z=-4
We divide both sides of the equation by 8 to get z.
z=-0.5
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