Solve for z
z=-5
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z=\frac{-77.5}{15.5}
Divide both sides by 15.5.
z=\frac{-775}{155}
Expand \frac{-77.5}{15.5} by multiplying both numerator and the denominator by 10.
z=-5
Divide -775 by 155 to get -5.
Examples
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Matrix
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Limits
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