vivi-fabri
vivi-fabri
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X+Y+Z=0 -X+Z=-7 ISOLA X --> -X = -7 +Z SUBSTITUI Z --> X = 7-5 = 2 Y - Z =8 ISOLA Y --> Y = 8 +Z SUBSTITUI Z --> Y= 8-5 = 3 7 +Z +8 +Z +Z =0 15+3Z=0 3Z=-15 Z= -15/3 Z= -5
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X+Y+Z=0 -X+Z=-7 ISOLA X --> -X = -7 +Z SUBSTITUI Z --> X = 7-5 = 2 Y - Z =8 ISOLA Y --> Y = 8 +Z SUBSTITUI Z --> Y= 8-5 = 3 7 +Z +8 +Z +Z =0 15+3Z=0 3Z=-15 Z= -15/3 Z= -5