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Question
Submitted by xxxromerobrya... on Thu, 2012-02-23 23:14
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answered 5 time(s)
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-x+y=1 x+y=11

-x+y=1 x+y=11

Answer
Submitted by shahimermaid on Fri, 2012-02-24 00:08
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the answer is given

body preview (15 words)

xxxxxx

xxxxxx

xxxxxx xxx xxxxxxxx

xx = xx

y xx

xxxxxxxxxx xx 1

xx + 6 =1

xx = -5

x xx


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Answer
Submitted by Doctor on Fri, 2012-02-24 04:35
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x=5 and y=6

Let's solve the equation set for y:

-x + y = 1

x + y = 11

=========== add both equations

0 +2y = 12 divide both sides of the equation by 2

y = 6

Let's solve the equation set for x:

-x + y = 1

x + y = 11

=========== subtract both equations

-2x+ 0 =-10 divide both sides of the equation by -2

x = 5

Hence, your solution is: x=5 and y=6.

I made a small plot for you where you can see the solution sets of -x + y = 1 and of x + y = 11. The point both sets intersect is the solution of both sets, namely: x=5 and y=6

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Answer
Submitted by kudabux85 on Fri, 2012-02-24 04:35
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x=5, y=6 (step by step)

body preview (31 words)

We xxxxx

xx x y x x and x + x xxx

y x x x x and x + x x 11

x x x x x xxx x + (1 + xx x 11

y x x x x and xx + x = xx

y = 1+x xxx 2x = xx

x = xx x xxx x = x

x x 6 xxx x x 5


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Answer
Submitted by kudabux85 on Fri, 2012-02-24 04:33
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x=5, y=6 (step by step)

body preview (31 words)

We xxxxx

-x x x x 1 and x x y xxx

y = 1 + x xxx x + y = 11

x = 1 + x and x x xx x xx x xx

y x 1 + x and xx + 1 = xx

x x 1+x xxx 2x x 10

y = 1+ 5 xxx x = 5

x = 6 and x = 5


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Answer
Submitted by mathejoy on Fri, 2012-02-24 01:38
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Simple explanation

body preview (14 words)

Add xxxx equations together xxx you will xxx xxxxxx Thus, xxxx -x+6=1, thus, x=5.


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