The perimeter of the triangle shown on the right is 369 feet. Find the length of each side.
2x
8x-5

^two dimentional figure with algebra^

the perimwter from triangle is:

s1 + s2 + s3

ok, enter:

s1 + s2 + s3= 369

x + (8x -5) + 2x = 369

x + 8x - 5 + 2x = 369

group according to the same variable

(x + 8x + 2x) + (-5)=369

11x + (-5)=369

11x - 5= 369

11x = 369 + 5

11x =374

x =374 : 11

x = 34

ok, subtituted:

s1= x

=34 feet

s2= 8x - 5

=8(34) - 5

=272 - 5

=267 feet

s3= 2x

=2(34)

=68 feet