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anonymous
 5 years ago
Please Help Me With This Problem, I Don't Quite Know How To Do It. . .
What Is The Solution Of The System? Use Substitution.
x=y6
6x3y=9
anonymous
 5 years ago
Please Help Me With This Problem, I Don't Quite Know How To Do It. . . What Is The Solution Of The System? Use Substitution. x=y6 6x3y=9

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0replace x in the second equation by y  3, and get an equation with y alone \[6(y3)3y=9\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0then solve for y. don't forget the distributive law. \[6y183y=9\] \[3y18=9\] \[3y=9\] \[y=3\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I Got 6y183y=9. . Now What Can I Do ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ohhh. Okay. Thank You Sooo Much!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oops i made a mistake. it was y 6 not y  3

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i goofed. \[6(y6)3y=9\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[6y363y=9\] \[3y36=9\] \[3y=27\] \[y=9\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0now since \[x=y6\] and we know \[y=27\] we get \[x=276=21\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thank you, and no problem, thanks!♥

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Wait. . But The Multiple Choice Says: A.(2,3) B.(22.7) C.(3,2) D.(3,5) And 21 Isn't Either of those. . . .

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0let me check see if i made a mistake

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Okay, And It Says To Eliminate, Not Substitute.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok yes i made a mistake. i wrote \[y=9\] but then for some reason wrote \[x=276\] instead of \[x=96=3\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0my fault sorry. i do not know why i put y = 9 and then used y = 27 however, i am sticking with (3,9) and the check is easy: first equation x= y  6 and 3 = 9  6 second equation is \[6x3y=9\] and \[6\times 3  3 \times 9 = 1827=9\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so (3, 9) is right even if it is not one of the choices.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0elimination: rewrite \[x=y6\] as \[xy=6\] and put \[6x3y=9\] underneath so it looks like \[xy=6\] \[6x3y=9\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0if you want to eliminate the "y" multiply the top equation all the way across by 3 to get \[3x+3y=18\] \[6x3y=9\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0that way when you add the "y"s will drop out to give \[3x=9\] and so \[x=3\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0dont forget to multiply EVERYTHING by the constant, otherwise you will not have the same equation.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0now you know \[x=3\] you can substitute back to find y = 9. as before.
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