-27x+220=-5x; 7a=-310+3a; -2x+16=5x-19; 25-3b=9-5b; 3+11y=203+y;
-27x+220=-5x
-22x=-220
x=10
7a=-310+3a
4a=-310
a=-77.5
-2x+16=5x-19
-7x=-35
x=5
25-3b=9-5b
2b=-16
b=-8
3+11y=203+y
10y=200
y=20
-27х+5х=-220 -22х=-220 Х=220:22 Х=10