4294+х=67*89
х=5963-4294
х=1669
----------
1001-z=1157:13
z=1001-89
z=912
----------------
2a=3384:47
a=72:2
a=36
------------
3b=99*85
b=8415:3
b=2805
----------
25x=1050:21
x=50:25
x=2
---------------
102z=2244:22
z=102:102
z=1
----------
3728-y=69*54
y=3728-3726
y=2
-----
148+z=1584:3
z=528-148
z=380