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3y+3x=24
y=4+x
3*(4+x)+3x=24
12+3x+3x=24
6x=24-12
6x=12/:6
x=2
y=4+2
x=2
y=6
i w klamerke:)
3(x+y)=24 x=2
y-x=4 /*3
3x+3y=24
3y-3x=12
3x+3y=24
6y=36 /6
y=6
y-x=4
3(x+y)=24
-x+y=4 /*3
3x+3y=24
-3x+3y=12
3x+3y=24 +
----------------------------------
6y=36 /6
y=6
y=6
3x+3y=24
y=6
3x+3*6=24
y=6
3x+18=24
y=6
3x=24-18
y=6
3x=6 /3
y=6
x=2