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pinkmommy
 3 years ago
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pinkmommy
 3 years ago
...

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avery23
 3 years ago
Best ResponseYou've already chosen the best response.0All you need to do is solve for x in the second equation, and you will get one of the answers.

avery23
 3 years ago
Best ResponseYou've already chosen the best response.0You should get x=8y. First add y to the other side, and then divide through by 1.

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0you need to substitute tha value of x into first equation....from second equation.. can you tell me what is your second euation?

avery23
 3 years ago
Best ResponseYou've already chosen the best response.0You are just trying to find what equation you would substitute in.

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0ok.. here your question says what expression would you substitute into the first equation? that means you just need to find the value to substitue so that you can solve later on BUt you have solved it by following the example in your note

avery23
 3 years ago
Best ResponseYou've already chosen the best response.0You did that right, but its just wanting you to isolate the second equation for x,i.e. solve for x and that is what your answer should be. The question is not wanting you to work it out. Just find what you are sustituting in.

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0so let us go back to the first step... can you just tell me which is first uqtion and second equation.. (it is obivious fromthe options... but I want you to know what you are doing)

pinkmommy
 3 years ago
Best ResponseYou've already chosen the best response.0i didnt know 8y was the answer it was a guess first 2x + y = 9 second x  y = 8

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0yes... now your question says "what expression would you substitute into the first equation? ".... can you tllme what that means?

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0yes.. ok.. let me help you it means.. you need to find a value to substitute in first equation.. and only we have second equation is left... you are correct

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0now look at the options... which variable is there in options

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0yup... so... you have to substitue a value which contain... y.... and also from second equation... so which variable has to be replaced?

pinkmommy
 3 years ago
Best ResponseYou've already chosen the best response.0eliminate to find y? idk

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0yes... exactly right?.... so how you can find that value of x from second equation

pinkmommy
 3 years ago
Best ResponseYou've already chosen the best response.0so how do i start doing it?

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0ok..so we have second equation.. and ar you convinced that w have to eliminate x and we can do that from second equation?

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0means we need to find the value of x ( since option is interms of y) to substitute (sorry for my bad english)

pinkmommy
 3 years ago
Best ResponseYou've already chosen the best response.0thats fine. how do i do that?

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0what expression would you substitute into the first equation?  from question we have second equation and can you tll me onc again what was second equation?

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0welll... what is x = ???

pinkmommy
 3 years ago
Best ResponseYou've already chosen the best response.0not trying to rush you but can you hurry && show me how to do this bc my son needs me right now. please && thank you :)

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0can you check again... Clue ( the equality will not change when same number is added or subtracted or divided or multiplied)

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0mmmm...ok... add y to both sides of equal sign what you get?

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0y and + y cancels so what is left?

pinkmommy
 3 years ago
Best ResponseYou've already chosen the best response.0i gotta go sorry. thanks for all of your help.

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0Ok I will write the steps.. so if you have any doubt can post here

Rosh007
 3 years ago
Best ResponseYou've already chosen the best response.0sorry this is corrct xy+y =8+y (not 8y, i made a mistak there) now x = 8+y multiply both side by  sign we get x = 8y which is th answer i am so sorry that I had to right the steps directly.. but hope you will commet.. if this dosn't get you..
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