Question

Aflați valorile x,z,y știind ca x+y+z=20005: y=x+(4004:77-50). z=y-(2003-998):67

Answer 1

calculam
y=x+(4004:77-50)
y=x+52-50
y=x+2; x=y-2, apoi calculam
z=y-(2003-998):67
z=y-1005:67
z=y-15, apoi inlocuim in prima relatie si avem:
y-2+y+y-15=20005
3y=20022
y=6674
x=y-2; x=6674-2=6672
z=y-15; z=6674-15=6659