Question

-2 2/3 - x = 1 1/9
3(0,4 + 1,4)=х - 0,8
(2 7/9 z + 3 1/3)*3/5=1/6 z - 13/2

Answer 1

1)
$x = - frac{23}{9}$
2)
$x = 6.2$
3)
$z = - 8 frac{14}{23}$