# Get the value of x and y..in 14x-12y=0 49x-42y=0

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The value of x=6 and y=7

Posted on Oct 06, 2010

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## Related Questions:

### What is x-3y=-12, 4x+6y=-12 in elimination ?

then x = 3y-12, then 4(3y-12) +6y=-12, then (12y-48)+6y=-12, then 12y-48+6y=-12, then 18y=36, then y=2. x=3y-12, x=3(2)-12, x=6-12, x=-6.

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### How do solve if X=1/x and Y=1/y, 12/x-12/y=7

There are no solutions.

x = 1/x
multiply both sides by x: x^2 = 1
take the square root of both sides x = sqrt(1)
this gives x = 1 or x = -1
similarly, y = 1 or y = -1

12x = 12 or 12x = -12
12y = 12 or 12y = -12

subtracting 12y from 12x can only give 24, 0, or -24, never 7.

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### How do solve if X=1/x and Y=1/y, 12/x-12y=7

There are no solutions.

x = 1/x
multiply both sides by x: x^2 = 1
take the square root of both sides x = sqrt(1)
this gives x = 1 or x = -1
similarly, y = 1 or y = -1

12x = 12 or 12x = -12
12y = 12 or 12y = -12

subtracting 12y from 12x can only give 24, 0, or -24, never 7.

Nov 18, 2014 | SoftMath Algebrator - Algebra Homework...

### How do solve the problem, if X=1/x and Y=1/y, solve 12/x-12/y=7?

There are no solutions.

x = 1/x
multiply both sides by x: x^2 = 1
take the square root of both sides x = sqrt(1)
this gives x = 1 or x = -1
similarly, y = 1 or y = -1

12x = 12 or 12x = -12
12y = 12 or 12y = -12

subtracting 12y from 12x can only give 24, 0, or -24, never 7.

Nov 18, 2014 | SoftMath Algebrator - Algebra Homework...

### Polynomial

What are the following(?) choices.
(X+3) is a factor of 14X^2+47X+15
You can verify that 14X^2+47X+15=(X+3)(14X+5)

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### Remainder theorem

(X+3) is a factor of 14X^2+47X+15
You can verify that 14X^2+47X+15=(X+3)(14X+5)

May 22, 2013 | Office Equipment & Supplies

### Dvd not burning

Sony made burners that required caddies a while back. And by looks of this post they also made special discs, listing for as much as \$73 ea. Besides, magneto it more like tape.

Yours drive is a regular HP laptop burner. They are not compatible. You can get blank DVD's for \$.50 each.

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