Find the solution of this system of equations. Separate the x- and y-values with a comma. x= 2 + y 3x – 7y= 10

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06-07-2017
Mathematics

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Find the solution of this system of equations. Separate the x- and y-values with a comma. x= 2 + y 3x – 7y= 10

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ghanami ghanami · Answer 1 · 2017-07-07T11:53:36+02:00

ghanami ghanami

07-07-2017

hello :
x= 2 + y ....(1)
3x – 7y= 10 ....(2)
subsct in (2) :
3(2+y) -7y = 10
6+3y -7y = 10
-4y = 4
y=-1
x = 2-1 = 1
the solution of this system of equations is (1 , -1)

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