2x+7y=48
Question
Asked 2/5/2013 6:16:31 PM
Updated 7/2/2014 6:57:25 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [7/2/2014 6:55:22 PM]
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Original conversation
User: 2x+7y=48

Weegy: 2x+7y=4 Since 2x does not contain the variable to solve for, [ move it to the right-hand side of the equation by subtracting 2x from both sides. 7y=-2x+4 Divide each term in the equation by 7. (7y)/(7)=-(2x)/(7)+(4)/(7) Cancel the common factor of 7 in (7y)/(7). ( 7 y)/( 7 )=-(2x)/(7)+(4)/(7) Remove the common factors that were cancelled out. y=-(2x)/(7)+(4)/(7) Combine the numerators of all expressions that have common denominators. y=(-2x+4)/(7) Factor out the GCF of -2 from the expression -2x. y=(-2(x)+4)/(7) Factor out the GCF of -2 from the expression 4. y=(-2(x)-2(-2))/(7) Factor out the GCF of -2 from -2x+4. y=(-2(x-2))/(7) Move the -1 to the front of the fraction. y=-(2(x-2))/(7) ]
thederby|Points 1530|

User: 2x+7y=48, x=44-6y

Question
Asked 2/5/2013 6:16:31 PM
Updated 7/2/2014 6:57:25 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [7/2/2014 6:55:22 PM]
Rating
8
2x+7y=48,
x=44-6y
substitute x in the first equation the result is:
2(44-6y)+7y=48
88-12y+7y=48
-5y=48-88=-40
y=-40/-5=8
x=44-6(8)=44-48=-4
The solution set for the system 2x+7y=48, x=44-6y is (-4, 8)
Added 7/2/2014 6:57:25 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [7/4/2014 4:51:00 PM]

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