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BentleyMommy12
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solve using two different methods. explain which method you found to be more efficient.
B. 7x3y=20
5x+3y=16
 one year ago
 one year ago
BentleyMommy12 Group Title
solve using two different methods. explain which method you found to be more efficient. B. 7x3y=20 5x+3y=16
 one year ago
 one year ago

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enzo274 Group TitleBest ResponseYou've already chosen the best response.1
 the first one is to take the addition of both equations. This allows you to solve x. y can be calculated easily after you have x.  the second method is to represent x in the mean of y. I don't remember the Mathematics term so i will do it for you. The first equation gives \[x=(20+3y)\div7 \] take this into the second equation \[5(20+3y)\div7 + 3y = 16\] Of course the first method is much comfortable. Enjoy your math
 one year ago

BentleyMommy12 Group TitleBest ResponseYou've already chosen the best response.0
thanks.
 one year ago

Haiqa Group TitleBest ResponseYou've already chosen the best response.0
Elimination is the 1st method u used & Substitution is the 2nd method
 one year ago
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