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7z+9-8=16
We simplify the equation to the form, which is simple to understand
7z+9-8=16
We move all terms containing z to the left and all other terms to the right.
+7z=+16-9+8
We simplify left and right side of the equation.
+7z=+15
We divide both sides of the equation by 7 to get z.
z=2.1428571428571
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