x+y+z=101
5x=7y
0,75y=6z
x=?
y=?
z=?

Пошаговое объяснение:

x=7y/5

y=6z/0.75=8z

(7*8z)/5=56z/5

56z/5+8z+z=101

z=5

y=8*5=40

x=(7*40)/5=56

x=7y/5

y=6z/0.75=8z

(7*8z)/5=56z/5

56z/5+8z+z=101

z=5

y=8*5=40

x=(7*40)/5=56