Question

Află doua nr.x şi y ştiind că x-y=54 x:y=7

Answer 1

x:y=7

x=7*y

7*y-y=54

6y=54

y=54:6

y=9

x=7*9

x=63

Answer 2

X-y=54; x=54+y; x:y=7 x=7xy 7y-y=54 6y=54 y=54:6 y=9 x=7x9=63 Grafic x /...../..../...../..../...../..../..../ y /..../_____________________ 54 7 parti-1 parte=54 6 parti= 54 1 parte=54:6=9 y=9 x=7x9=63