Rozwiąż równanie: 2x+3y=37 x+y=15
x+y=15 --------x=15-y
2x+3y=37
2(15-y)+3y=37
30-2y+3y=37
y=37-30
y=7
x=15-7
x=8
spr
2*8+3*7=16+21=37
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x+y=15 --------x=15-y
2x+3y=37
2(15-y)+3y=37
30-2y+3y=37
y=37-30
y=7
x=15-7
x=8
spr
2*8+3*7=16+21=37