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5z/7-5z/9=1
We simplify the equation to the form, which is simple to understand
5z/7-5z/9=1
Simplifying:
+ 0.714285714286z-5z/9=1
Simplifying:
+ 0.714285714286z-0.555555555556z=1
We move all terms containing z to the left and all other terms to the right.
+ 0.714285714286z-0.555555555556z=+1
We simplify left and right side of the equation.
+ 0.15873015873z=+1
We divide both sides of the equation by 0.15873015873 to get z.
z=6.3
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