a)4x-3x=0,349+18,94=>x=19,289
b)3x+2x-2x-x=3,84-1,235=>2x=2,605=>x=1,3025
c)2x+x-x=12+3,14=>2x=15,14=>x=15,14/2=7,57
d)4x+3x-3x=7,85+2,15=>4x=10=>x=2,5
e)3x+2x+x-x=12,25-6,25=>5x=6=>x=1,2
f)8x-2x+2x=7,395+0,35-1,345=>8x=6,4=>x=0,8
g)14x-7x+7x=24,01-12,25=>14x=11,76=>x=0,84