Czworokąt na rysunku jest prostokątem oblicz długość jego boków
3y-4
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2x+1 | | y+1
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4x
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2x+1=y+1
3y-4=4x
y=2x
3*2x-4=4x
y=2x
6x-4x=4
y=2x
x=2
y=4
x=2
{2x + 1 = y +1
{3y - 4= 4x
{y= 2x
{x = 2
{y = 4
{x= 2
odp: bok pierwszy to 5 bok drugi 8