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  • Utilizator Brainly
2014-02-17T13:18:17+02:00
X-a=24 ⇒ x=a+24
y-a=81 ⇒ y=a+81
z-a=132 ⇒ z=a+132
Inlocuiesti x,y,z in prima ecuatie ⇒ a+24+a+81+a+132=270 ⇒ 3a+237=270
⇒ 3a=270-237, a=33:3=11 
x=a+24=11+24=35
y=a+81=11+81=92
z=a+132=11+132=143