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stiind ca x+2y+3z=20si ca 3x+y+2z=30 calculati a) x+2y+3z+4 b) 3x+y+2z+10 c) 4x+3y+5z​

Răspuns :

Răspuns:

x+2y+3z=20

3x+y+2z=30

a) x+2y+3z+4 =20+4=24

b) 3x+y+2z+10 =30+4=34

c) x+2y+3z+3x+y+2z=4x+3y+5z​=20+30=50