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Solve the following system of equations, using the graphing method: x + 2y = 4 2x - y = 3
The solutions for the systems x + 2y = 4, 2x - y = 3 are x = 2, y = 1. Multiply x + 2y = 4 by -2: -2x - 4y = -8; (-2x - 4y = -8) + (2x - y = 3): -5y = -5; y = 1; Solve for x: x + 2(1) = 4; x + 2 = 4; x = 4 - 2; x = 2
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Asked 4/27/2013 6:02:17 AM
Updated 10/1/2014 6:22:14 AM
1 Answer/Comment
Edited by jeifunk [10/1/2014 6:04:30 AM]
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The solutions for the systems x + 2y = 4, 2x - y = 3 are x = 2, y = 1.
Multiply x + 2y = 4 by -2:
-2x - 4y = -8;
(-2x - 4y = -8) + (2x - y = 3):
-5y = -5;
y = 1;
Solve for x:
x + 2(1) = 4;
x + 2 = 4;
x = 4 - 2;
x = 2
Added 10/1/2014 6:22:14 AM
This answer has been confirmed as correct and helpful.
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Solve this proportion: x + 1 over 6 and x + 2 over 4. Here are the multiple choices: { - 4} {3} {1/2} { - 6} User: That is incorrect, please look at the multiple choices.
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Expert Answered
Updated 8/6/2014 9:35:18 PM
1 Answer/Comment
-4 is the answer for x + 1 over 6 and x + 2 over 4.
(x+1)/6=(x+2)/4
(x+1)/3=(x+2)/2
2*(x+1)/3=x+2
2x+2=3(x+2)
2x+2=3x+6
3x-2x=2-6
x=-4.
Added 8/6/2014 9:27:22 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [8/6/2014 9:35:23 PM], Rated good by jeifunk
Solve this proportion: x + 1 over 6 and x + 2 over 4. Here are the multiple choices: { - 4} {3} {1/2} { - 6}
Weegy: The proportion for the equation x+1/6, x+1/2 is (1/6+x)+(1/2+x) = 2 x+2/3. (More)
Question
Expert Answered
Updated 8/6/2014 9:35:00 PM
1 Answer/Comment
-4 is the answer for x + 1 over 6 and x + 2 over 4.
(x+1)/6=(x+2)/4
(x+1)/3=(x+2)/2
2*(x+1)/3=x+2
2x+2=3(x+2)
2x+2=3x+6
3x-2x=2-6
x=-4.
Added 8/6/2014 9:28:51 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [8/6/2014 9:34:57 PM], Rated good by jeifunk
Solve the linear equation. -2x - 2 + 7(x + 1) = 2x - 4
Weegy: -2x - 2 + 7(x + 1) = 2x - 4; -2x - 2 + 7x + 7 = 2x - 4; 5x + 5 = 2x - 4; 5x - 2x = -4 - 5; 3x = -9; x = -9/3; x = -3 User: Solve and check the linear equation. 6x - 7 + 3(x + 1) = 4x - 6 (More)
Question
Expert Answered
Updated 8/5/2014 10:56:52 PM
1 Answer/Comment
6x - 7 + 3(x + 1) = 4x - 6;
6x - 7 + 3x + 3 = 4x - 6;
9x - 4 = 4x - 6;
9x - 4x = -6 + 4;
5x = -2;
x = -2/5
Added 8/5/2014 10:56:52 PM
This answer has been confirmed as correct and helpful.
Solve the following system of equations: x + 2y = 4 2x - y = 3 Here are the multiple choices: (2, 1) (-1, -3) (0, 4) (5, -2)
Question
Not Answered
Updated 3/1/2015 2:59:43 AM
1 Answer/Comment
The solution set for the systems x + 2y = 4, 2x - y = 3 is: (2, 1)

(x + 2y = 4) * (-2);
-2x - 4y = -8;
(-2x - 4y = -8) + (2x - y = 3);
-5y = -5;
y = 1;
x + 2 = 4;
x = 4 - 2;
x = 2
Added 3/1/2015 2:59:43 AM
This answer has been confirmed as correct and helpful.
Solve the following system of equations, using the elimination method: 5x + 3y = -7 7x - 3y = 55
Weegy: Solve the following system of equations, [ using the elimination method: 5x + 3y = -7 7x - 3y = 55 Answer 5x + y = -17 - - - > 15x + 3y = -51 {multiplied top equation by 3} 7x - 3y = -37 15x + 3y = -51 {new top equation} 7x - 3y = -37 {original bottom equation} - - - - - - - 22x = -88 {added the two equations together} x = -4 {divided both sides by 22} 5x + y = -17 {top equation} 5(-4) + y = -17 {substituted -4, in for x, into top equation} -20 + y = -17 {multiplied 5 by -4} y = 3 {added 20 to both sides} x = -4 and y = 3 Source ] User: Here are the multiple choices: (4, -9) (3, -6) (0, -14) (7, 3) (More)
Question
Expert Answered
Updated 6/23/2014 10:41:41 PM
1 Answer/Comment
5x + 3y = -7
7x - 3y = 55
adding up equations the result is:
12x = 48
x = 48/12 = 4
5(4) + 3y = -7
20 + 3y = -7
3y = -7 - 20 = -27
y = -27/3 = -9
The solution for the system 5x + 3y = -7 7x - 3y = 55 is (4, -9)
Added 6/23/2014 10:41:41 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [6/23/2014 11:34:32 PM]
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