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z+12z-48=0
We simplify the equation to the form, which is simple to understand
z+12z-48=0
We move all terms containing z to the left and all other terms to the right.
+1z+12z=0+48
We simplify left and right side of the equation.
+13z=+48
We divide both sides of the equation by 13 to get z.
z=3.69230769231
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