Solve for z
z = \frac{1000}{3} = 333\frac{1}{3} \approx 333.333333333
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3z=3800-2800
Subtract 2800 from both sides.
3z=1000
Subtract 2800 from 3800 to get 1000.
z=\frac{1000}{3}
Divide both sides by 3.
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