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b-II liczba
a+b=1¼
a-b=11,75
a=1,25-b
1,25-b-b=11,75
a=1,25-b
-2b=11,75 -1,25
a=1,25-b
-2b=11,75 -1,25
a=1,25-b
b=-5,25
a=1,25-(-5,25)=6,5
b=-5,25
{x - y = 11,75
2x = 13
x = 6,5
6,5 + y = 1,25
y = -5,25
{x = 6,5
{y = -5,25
y druga liczba
x+y=1i1/4
x-y=11,75
x=1i1/4-y
1i1/4-y-y=11,75
-2y=11,75-1,25
-2y=10,5/:(-2)
y=-5,25
x+(-5,25)=1i1/4
x=1,25+5,25
x=6,5
x=6,5
y=-5,25