2x+3y-6=0
1) x=3; y=0
2×3+3×0-6=0
6+0-6=0
0=0 — истина
2) x=0; y=2
2×0+3×2-6=0
0+6-6=0
3) x=-1,5; y=3
2×(-1,5)+3×3-6=0
-3+9-6=0
4) x=9; y=-4
2×9+3×(-4)-6=0
18-12-6=0
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Answers & Comments
2x+3y-6=0
1) x=3; y=0
2×3+3×0-6=0
6+0-6=0
0=0 — истина
2) x=0; y=2
2×0+3×2-6=0
0+6-6=0
0=0 — истина
3) x=-1,5; y=3
2×(-1,5)+3×3-6=0
-3+9-6=0
0=0 — истина
4) x=9; y=-4
2×9+3×(-4)-6=0
18-12-6=0
0=0 — истина