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2х-3 - 1-х + 5х+1 = 9х+3
5 4 20 10


8х-3 - 3х+1 =2
7 10


3х-1 + 6х+3 = 10
2 11

2х+5=2(х-4)+13

1(2х-3)/5-(1-х)/4+(5х+1)/20=(9х+3)/104(2х-3)-5(1-х)+(5х+1)=2(9х+3)8х-12-5+5х+5х+1-18х-6=0-22=0нет решения2(8х-3)/7-(3х+1)/10=210(8х-3)-7(3х+1)=2*7080х-30-21х-7=14059х=140+3759х=177х=33(3х-1)/2+(6х+3)/11=1011(3х-1)+2(6х+3)=10*2233х-11+12х+6=22045х=220+545х=225х=542х+5=2х-8+132х-2х=5-50=0х∈R