Respuesta :

ghanami
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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