Rowziąż układ.
{3y-2x=3
y-2/3x=4
klamra obejmuje obie linijki.
3y-2x=3
y=4+2/3x
3(4+2/3x)-2x=3
12+3x=3
y= 2/3x +4
12-3=3x
y=2/3x+4
9=3x | :3
y=2/3x +4
x=3
y=3
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3y-2x=3
y=4+2/3x
3(4+2/3x)-2x=3
y=4+2/3x
12+3x=3
y= 2/3x +4
12-3=3x
y=2/3x+4
9=3x | :3
y=2/3x +4
x=3
y=3