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Needhelp2
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Solve for x and y for the system: 4x  6y = 20 3x + 6y = 48 What is x + y?
 2 years ago
 2 years ago
Needhelp2 Group Title
Solve for x and y for the system: 4x  6y = 20 3x + 6y = 48 What is x + y?
 2 years ago
 2 years ago

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mboorstin Group TitleBest ResponseYou've already chosen the best response.0
We'll do this by substitution (Gaussian Elimination isn't worth it for 2 equations).
 2 years ago

Kaederfds Group TitleBest ResponseYou've already chosen the best response.2
4x6y=20 3x+6y=48  + 7x=28 x=4 3.4+6y=48 12+6y=48 6y=36 y=6 x+y=10
 2 years ago

mboorstin Group TitleBest ResponseYou've already chosen the best response.0
\[\begin{align} 4x=6y20\\ x=\tfrac{3}{2}y5\\ \tfrac{9}{2}y15+6y=48\\ 21y=126\\ y=6\\ x=95=4\\ x+y=10 \end{align}\]
 2 years ago

Needhelp2 Group TitleBest ResponseYou've already chosen the best response.0
Thank you so very much I had 6.. :(
 2 years ago
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