SOLUTION: solve equation using additive and multiplicative inverse. please help.! 7/z=9-4

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Question 970843: solve equation using additive and multiplicative inverse. please help.! 7/z=9-4
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
7%2Fz=9-4

z%287%2Fz%29=z%289-4%29
7=z%2A5
7%281%2F5%29=z%2A5%281%2F5%29
7%2F5=z

Notice that additive inverse was not used. This inverse was not needed and has no application here.