If EF=3x-10, FG=2x-15 and EG=20, find the value of x, EF and FG.

Answer 1

EG = EF+FG
20 = 3x-10 + 2x-15
20 = 5x - 25
5x = 45
x=9

you should be able to get EF and FG now.

Answer 2

EF = 7x + 9
FG = 3x + 4
EG = 143