14-09-2022
Mathematics

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Evaluate the expression -7x -1/6y +2z-xy+28 when x = 2, y=12 and z =9
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jaisurajk jaisurajk

14-09-2022

Answer: 12

Step-by-step explanation:

x = 2, y=12 and z =9

-7x -1/6y +2z-xy+28=

-7(2) -1/6(12) +2(9)-(2)(9)+28=

-14-12/6+18-18+28=

-14-2+28=

-(14+2)+28=

-16+28=

28-16=12

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