44-10(3-4x)=7(5x+2)
(x+4)(x+6)-x2=30
(x-1)(x-3)=(x-2)(x-4)
x2-(x-5)2=10
(x-3)(x+1)=(x-2)2
44-30+40х=35х+14
40х-35х=14-44+30
5х=0
х=0