Algebra help with solving a system of linear equations using elimination with multiplication and +

label Algebra
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Dec 17th, 2015

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9x+2y=-16      ----------. equation 1

-3x-8y=-2   ==> -9x-24y=-6     by multiplying with 3



9x+2y=-16 

-9x-24y=-6

-----------------

-22y = -22

y=1 

put value of y in equation 1

9x+2(1)=-16

9x+2=-16

9x= -18

x= -2

y=1

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Dec 17th, 2015

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