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28-10-2021
Mathematics

contestada

Solve the system of equations
3x-y=6
6x+y=21

Respuesta :

89hg4f5524 89hg4f5524

28-10-2021

3x-y=6
6x+y=21

9x=27
/9 /9

X=3

6(3)+y=21
18+y=21
-18 -18
Y=3

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