Rozwiąż układ : { 1,5x+2,5y=200
{ x=y+10
{ 1,5x+2,5y=200/*10
15x+25y=2000
x=y+10
15(y+10)+25y=2000
15y+150+25y=2000
40y=2000-150
40y=1850/:40
y=46,25
x=46,25+10
x=56,25
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{ 1,5x+2,5y=200/*10
{ x=y+10
15x+25y=2000
x=y+10
15(y+10)+25y=2000
x=y+10
15y+150+25y=2000
x=y+10
40y=2000-150
x=y+10
40y=1850/:40
x=y+10
y=46,25
x=46,25+10
y=46,25
x=56,25