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z-3=-8.1
We simplify the equation to the form, which is simple to understand
z-3=-8.1
We move all terms containing z to the left and all other terms to the right.
+1z=-8.1+3
We simplify left and right side of the equation.
+1z=-5.1
We divide both sides of the equation by 1 to get z.
z=-5.1
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