x-2=y 2x+3y=195
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x-2=y 2x+3y=195
x-2=y 2x+3y=195
x-2=y 2x+3y=195
把x-2=y代入2x+3y=195,2x+3(x-2)=5x-6=195,5x=201,x=40.2,y=38.2
x-2=y 2x+3y=195 2x+3(x-2)=195 5x-6=195 5x=201 x=40.02 y=38.02
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