Given -:
EF = 2X-7
FG = 4X-20
EG = 21
FIND OUT
EF =?
FG = ?
To proof
as given in the question
we have the value of EF = 2X-7 , FG = 4X-20 and EG = 21
Thus we have
EG = EF + FG
21 = 2X-7 + 4X- 20
21 = 6x - 27
48 = 6x
x = 8
Hence proved
Now put this value
[tex]EF = 2\times 8 - 7\\EF = 9[/tex]
Now
[tex]FG = 4\times 8 - 20\\FG = 12[/tex]
Hence proved
