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Question
Submitted by kaya_b on Mon, 2012-05-07 23:51
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x2+y=8x+19 x2-y+7x-11 solve by elimination

x2+y=8x+19 x2-y+7x-11

solve by elimination

Answer
Submitted by shahimermaid on Tue, 2012-05-08 00:11
teacher rated 386 times
4.321245
price: $1.00

the answer is solved in detail

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xxxxxxxxxx

xxxxxxxx all xxxxxxxxx xx the LHS

x2 + x x 8x -19 xx

x2 - x + xx -11 =0

xxxxxxxxxxx 1 xxxx 2

y x 8 x xxx =0

y xxx x 11 =0

xxxxxxxxxxx 3 from x

y-8x -19 -y +7x -11 xx

-x x xx xx

xx = 30

x x xxx

substiututing x xxxx xx x

(-30)^2+y = 8 x -30 +19

xxx x x x xxxxxxx

y xx xxx -900 = -1131


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