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-z/2.1=-100
We simplify the equation to the form, which is simple to understand
-z/2.1=-100
Simplifying:
-0.47619047619z=-100
We move all terms containing z to the left and all other terms to the right.
-0.47619047619z=-100
We simplify left and right side of the equation.
-0.47619047619z=-100
We divide both sides of the equation by -0.47619047619 to get z.
z=210
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