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Solve the system of linear equations below. x + y = 4 2x + 3y = 0
x + y = 4, then x = 4 - y 2x + 3y = 2 (4 - y) + 3y = 0 Simplify the equation we get y = -8 so x = 4 - y = 12
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User: Solve the system of linear equations below. x + y = 4 2x + 3y = 0

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Asked 2/4/2013 5:52:25 AM
Updated 2/4/2013 6:06:56 AM
1 Answer/Comment
Flagged by yeswey
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x + y = 4, then x = 4 - y
2x + 3y = 2 (4 - y) + 3y = 0
Simplify the equation we get y = -8
so x = 4 - y = 12
Added 2/4/2013 6:06:56 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by andrewpallarca [9/1/2014 5:53:16 AM]
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Evaluate the expression below when y = -3. 2y + 7 and -4y - 10 Select one of the options below as your answer: A. -1, 22 B. -13 2, C. 1, 2 D. 1
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Expert Answered
Updated 9/1/2014 6:00:25 AM
1 Answer/Comment
2y + 7 and -4y - 10, y = -3;
2y + 7
= 2(-3) + 7
= -6 + 7
= 1;
-4y - 10
= -4(-3) - 10
= 12 - 10
= 2
Answers are 1 and 2.
Added 9/1/2014 6:00:13 AM
This answer has been confirmed as correct, not copied, and helpful.
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Updated 9/1/2014 6:04:03 AM
1 Answer/Comment
The slope of the line defined by the equation 2x + 3y = 18 is -2/3.
2x + 3y = 18 (divide all terms by 3)
(2x/3) + (3y/3) = 18/3;
2/3x + y = 9;
y = -2/3x + 9
Added 9/1/2014 6:03:59 AM
This answer has been confirmed as correct, not copied, and helpful.
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Expert Answered
Updated 9/1/2014 6:06:12 AM
1 Answer/Comment


The slope of the line defined by the equation 3x - y = 0 is 3.
3x - y = 0 (divide all terms by -1)
-3x + y = 0;
y = 3x
Added 9/1/2014 6:06:09 AM
This answer has been confirmed as correct, not copied, and helpful.
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