Решите уравнение 1) х - 7 8/11 = 2 5/11, 2) 3 7/17-( x+1 4/17) = 1 9/17

1) x - 7 8/11 = 2 5/11, x = 2 5/11 + 7 8/11, x = 27/11 + 85/11, x = 112/11. 2) 3 7/17-( x+1 4/17) = 1 9/17 58/17 - x - 21/17 = 26/17 37/17 - x = 26/17 - x = 26/17 - 37/17 -x = -11 / 17 x = 11/17

0,6=6/10,

48*10/6=80деревьев

х-количество елей

х+2х=540

3х=540

х=540/3

х=180

елей-180

шиповника - 180х2=360