2x/3+3y/4=1/5 5x/6-5y/2=2
2个回答
8x+9y=12/5
x-3y=12/5=8x+9y
7x=-12y
x=-12y/7
-12y/7-3y=12/5
y=-28/55
x=-12y/7=48/55
相关问题
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2X/3-3Y/4=1/5 5X/6-5Y/2=2求X与Y值
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