2x+x/4-x=1/9+3/6
8x+x-4x=2+9
5x=11
x=11÷5
x=2,2
1)19-6x-16=2x-37
-6x-2x=-37+16-19
-8x=-40
x=5
2)8x+21-6x=4x+3
8x-4x-6x=-21+3
-2x=-18
x=9
3)23-12x-32=1-17x
-12x+17x=1+32-23
5x=10
x=2
(44*42)/(77*12)=(4*42)/(7*12)=42/(7*3)=6/3=2
(38*45)/(81*57)=(38*5)/(9*57)=(2*5)/(9*3)=10/27