Помогите решить г, д, е

г)
0,7x-0,8x=3,46+1,82
-0,1x=5,28
x=5,28:(-0,1)
x=-52,8
============
2 1/3x-1 2/3x=2 1/3-1 1/2
2/3x=5/6
x=5/6*3/2
x=5/4
x=1 1/4
=============
-1 3/5y+3y=4 1/2-1/2
1 2/5y=4
y=4:1 2/5
y=4:7/5
y=4*5/7
y=20/7
y=2 6/7
==============