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 one year ago
Using elimination, substitution solve c and b
C. y = 1\2x  6
2x + 6y = 19
B. 7x  3y = 20
5x + 3y = 16
 one year ago
Using elimination, substitution solve c and b C. y = 1\2x  6 2x + 6y = 19 B. 7x  3y = 20 5x + 3y = 16

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hereweg0
 one year ago
Best ResponseYou've already chosen the best response.0okay solve the second one for y

MrDoe
 one year ago
Best ResponseYou've already chosen the best response.2so for elimination, i suggest multiplying the first equation by negative 4 to get rid of x, than solve for y. for the substitution part, any one will work just fine, just isolate one variable

InspyR4D
 one year ago
Best ResponseYou've already chosen the best response.17x  3y = 20 5x + 3y = 16 To eliminate you add together the top and bottom equation so you get 12x = 36 x= 3 Then you can work out y 5x3 +3y = 16 15+3y = 16 3y= 1 y= 1/3

MrDoe
 one year ago
Best ResponseYou've already chosen the best response.2watch it though inspy, i think that was a .5x

InspyR4D
 one year ago
Best ResponseYou've already chosen the best response.1The first one is wrong. I forgot to multiply the 6 by 6

MrDoe
 one year ago
Best ResponseYou've already chosen the best response.2y=.5x6 and 2x+6y=19 so multiply the first eq by 4 to get: 4y=2x24 = 4y2x=24 now take that and add the two to get: 10y=5 so y =1/2 then just solve for x using the known yvalue for the substitution: remember from your first eq that y=.5x6, so just sub that into the second eq: 2x+6(.5x6)=19 and solve

InspyR4D
 one year ago
Best ResponseYou've already chosen the best response.1y = 1\2x  6 2x + 6y = 19 6y = 3x36 6y= 192x 3x36=192x 5x= 55 x= 11 y= 0.5 Thanks Mr Doe

xBabyGirlx
 one year ago
Best ResponseYou've already chosen the best response.0i get it thanks you guys
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