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z/8.4-9=-4
We simplify the equation to the form, which is simple to understand
z/8.4-9=-4
Simplifying:
+ 0.119047619048z-9=-4
We move all terms containing z to the left and all other terms to the right.
+ 0.119047619048z=-4+9
We simplify left and right side of the equation.
+ 0.119047619048z=+5
We divide both sides of the equation by 0.119047619048 to get z.
z=42
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