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anonymous
 one year ago
what is the value of x
2/7+12/x
(use cross products to write the equation:2x=84)
Please help!!!!
anonymous
 one year ago
what is the value of x 2/7+12/x (use cross products to write the equation:2x=84) Please help!!!!

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FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1do you mean 2/7 = 12/x ?

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1oh okay, so yeah you apply the cross product as you had written up above, to get, 2x = 84 (do you understand this part?)

texaschic101
 one year ago
Best ResponseYou've already chosen the best response.1So you do know how to cross multiply ?

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1okay now, to find the value of x, we need to isolate it, do you have any ideas on how we can do this?

texaschic101
 one year ago
Best ResponseYou've already chosen the best response.1just checking......but do you understand how you got 2x = 84 ?

texaschic101
 one year ago
Best ResponseYou've already chosen the best response.1ok....continue FireKat :)

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1okay so we have 2x = 84, so to avoid changing the equation, whatever we do to one side, we must also do to the other, so in this case, to get rid of the coefficient of x, we can divide both sides by 2, so we get; 2x/2 = 84/2 which we can now simplify to x = 42. Do you understand?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so the anwser is 42?

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1yup because we divided 84 by 2 and that simplifies down to 42

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you sososo much
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