SOLUTION: For y=14,the value of 4/7y-3 is??

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Question 869646: For y=14,the value of 4/7y-3 is??
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
It is unclear if you mean %284%2F7%29y+-+3, 4%2F%287y%29+-+3 or 4%2F%287y+-+3%29


Please use parenthesis to properly group the terms and show which terms are in the denominator of the fraction


For instance if you mean 4%2F%287y%29+-+3, then you'd write 4/(7y) - 3


If you mean 4%2F%287y+-+3%29, then you'd write 4/(7y - 3)


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If the expression is %284%2F7%29y+-+3, then....


%284%2F7%29y+-+3


%284%2F7%29%2814%29+-+3 Plug in y=14


%284%2F7%29%2814%2F1%29+-+3


%284%2A14%29%2F%287%2A1%29+-+3


56%2F7+-+3


8+-+3


5


That means %284%2F7%29y+-+3=5 when y=14


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If the expression is 4%2F%287y%29+-+3, then....


4%2F%287y%29+-+3


4%2F%287%2A14%29+-+3


4%2F98+-+3


2%2F49+-+3


2%2F49+-+3%2849%2F49%29


2%2F49+-+147%2F49


%282+-+147%29%2F49


-145%2F49


That means 4%2F%287y%29+-+3=-145%2F49 when y=14


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If the expression is 4%2F%287y+-+3%29, then....


4%2F%287y+-+3%29


4%2F%287%2A14+-+3%29


4%2F%2898+-+3%29


4%2F95


That means 4%2F%287y+-+3%29=4%2F95 when y=14