If x12 and y 13 what is x-y?

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Both x and y are real numbers and x > y . Given ${x^2-x y+y^2 = 15, x y+x+y = 13}$ find the value of $x^2+6y$ . I tried solving the second equation to get $y=(13-x)/ ... - Read more

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If x12 and y 13 what is x-y? resources

1.Solve The System. X + Y = 13 X – Y = –1 A ...

x + y = 13 x – y = –1 A. (-7,20) B. (6,7) C. (7,6) D. (20,-7) 2. Solve the system. x + y = 13 x – y = –3 A. (-8,21) B. (21,-8) C. (5,8) D. (8,5)

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SOLUTION: if x+y=13 x.y=36 what is x and y

Question 566111: if x+y=13 x.y=36 what is x and y Answer by Alan3354(38223) (Show Source): You can put this solution on YOUR website! if x+y=13 x.y=36

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According to the theorem, it is possible to expand the power (x + y) n into a sum involving terms of the form ax b y c, ... 13 External links; History

N = (x^2 + y^2)/(1+xy) is a Square - MathPages

... with x > y (clearly x cannot equal y except when x=y=1), ... 13, 15, 19, 21, 25, 31, 37, 39, 45, 49, 61, 81, 85, 99, 109, 115, 129, 141, 145, ...

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1) x +y 7 x-y -1 what is the solution of the system of ...

... x +y 7 x-y -1 what is the ... X+ 5y = 33 -x + 4y =21 What is the solution of the system Solve by elimination method 5x +2y = -13 7x-3y = 17 What is the solution ...

Fun with maths: solve for value of X and Y if X2 +Y2=25 ...

now x+ y = 7 and xy = 12 => (x-y)^2 = (x+y)^2 – 4xy = 1 so x- y = +/- 1 x-y = 1 => x= 4 and y = 3 ... What is the value of X and Y if X^2 +Y^2=13 and X^3 ...

x-y=-13;7x-2y=-51 - solution - Get Easy Solution

x-y=-13;7x-2y=-51 Simple and best practice solution for x-y=-13;7x-2y=-51. Check how easy it is, to solve this system of equations and learn it for the future.

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Can You Solve The Substitution Method 2x+5y=29 -2x+y=13 ...

... 2x + 5y = 292x + 5(13+2x) = 292x + 65 + 10x = 2912x = 29 - 65x = -36/12 = -3y = 13 + 2(-3) = 13-6 = 7The solution is (x, y) = (-3, 7)2. 6x + y < -9, is (x, y ...

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hw-13-variation-sci-formulas Due: 12/13/2015 at 06:00am EST. Students will be able to: ... If z = 648 when x = 3 and y = 8, what is z when x =7 and y=5? z= 13.

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Solve z=13+2(x+y) - Tiger-Algebra

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Evaluate if x = 13.2 and y = -4.3. -x - 2y? - Answer Buddha

Evaluate if x = 13.2 and y = -4.3. -x - 2y? Evaluate if x = 13.2 and y = -4.3. -x - 2y? Evaluate if x = 13.2 and y = -4.3. -x - 2y? ...

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Solve the system : x + y = 5 x^2 + y^2 = 13 - Homework ...

We have to solve x+y = 5 and x^2 + y^2 = 13 for x and y . First we take x+y = 5. square both the sides => (x + y)^2 = 5^2 => x^2 + y^2 + 2xy = 25. Now x^2 + y^2 = 13

Question 1. If x y ;y z and x z = 7, what is x y z? Answer: 4

If x+ y= 3;y+ z= 5;and x+ z= 7, what is x+ y+ z? Answer: 4 Question 2. ... Question 13. Simplify 1 + 2 + 3 + :::+ 9 2 + 4 + 6 + :::+ 10 2 to lowest terms. Answer: 1 2

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