2x-3y=2 2x-3y+5/7+2y=9
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因为2X-3Y=2,所以2+5/7+2Y=9,得Y=22/7.所以2X=3乘以22/7=2得X=40/7。
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2x-3y=2 1
2x-3y+5/7+2y=9 2
5/7+2y=9-2=7
2y=44/7
y=22/7
x=(2+22/7×3)÷2=40/7
x=40/7
y=22/7
2x-3y+5/7+2y=9 2
5/7+2y=9-2=7
2y=44/7
y=22/7
x=(2+22/7×3)÷2=40/7
x=40/7
y=22/7
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把2x-3y=2带入2x-3y+5/7+2y=9:2+5/7+2y=9 y=22/7
把y=22/7带入2x-3y=2 x=40/7
把y=22/7带入2x-3y=2 x=40/7
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2x-3y=2 1
2x-3y+5/7+2y=9 2
5/7+2y=9-2=7
2y=44/7
y=22/7
x=(2+22/7×3)÷2=40/7
x=40/7
y=22/7
2x-3y+5/7+2y=9 2
5/7+2y=9-2=7
2y=44/7
y=22/7
x=(2+22/7×3)÷2=40/7
x=40/7
y=22/7
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2x-3y=2
-->2+5/7+2y=9
-->2y=58/7
-->y = 29/7
2x-3*29/7=2;
--> x = 29/84
-->2+5/7+2y=9
-->2y=58/7
-->y = 29/7
2x-3*29/7=2;
--> x = 29/84
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