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z/12+9=15
We simplify the equation to the form, which is simple to understand
z/12+9=15
Simplifying:
+ 0.0833333333333z+9=15
We move all terms containing z to the left and all other terms to the right.
+ 0.0833333333333z=+15-9
We simplify left and right side of the equation.
+ 0.0833333333333z=+6
We divide both sides of the equation by 0.0833333333333 to get z.
z=72
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