👤

Calculeaza b-c+a, daca a+6x9=b-56:8=c+32:4=68


Răspuns :

a+54=b-7=c+8=68 
a+54=68
b-7=68
c+8=68 

a=68-54=>a=14
b=68+7=>b=75
c=68-8=>c=60

b-c+a = 75-60+14=15+14=29
b-c+a=29