Ответ:
1/4x-x=1 4/5
3/4x=1 4/5
x= 1 4/5:3/4
x1=2 2/3
x2=2 2/5*1/4=3/5
x1+x2= 2 2/5+3/5=3
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Ответ:
1/4x-x=1 4/5
3/4x=1 4/5
x= 1 4/5:3/4
x1=2 2/3
x2=2 2/5*1/4=3/5
x1+x2= 2 2/5+3/5=3