determina cifrele x si y stiind ca a)x8+y8=96b)x98+y02=500c)37x+2y7=600d)987x+x1y6=14.000

X8+y8= 96 8+8= 16

X+y = 9-1= 8

X= { 1,2,3,4,5,6,7}

Y= {7,6,5,4,3,2,1}. Adică x=1 când y = 7

b) = x98 + y02=500 x+y= 5-1= 4

X= { 1,2,3} Y= { 3,2,1}


C) = 37x + 2y7= 600

X+ 7= 10 X = 10-7={ 3 }

Y+1+7= 10 Y = 10-8={ 2 }

D) = 987x+x1y6= 14000

X= 10-6={ 4 }

Y= 10-7-1 = {2}

Proba?

9874+4126= 14000

Sper ca te-am ajutat !