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z\2+1=9
We simplify the equation to the form, which is simple to understand
z\2+1=9
We move all terms containing z to the left and all other terms to the right.
+1z=+9-1
We simplify left and right side of the equation.
+1z=+8
We divide both sides of the equation by 1 to get z.
z=8
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