4分之x-3y+3分之y+5=2x-7 10(x-y)-4(1-x)=3y

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4分之x-3y+3分之y+5=2x-710(x-y)-4(1-x)=3y4分之x-3y+3分之y+5=2x-710(x-y)-4(1-x)=3y4分之x-3y+3分之y+5=2x-710(x-y)-4

4分之x-3y+3分之y+5=2x-7 10(x-y)-4(1-x)=3y
4分之x-3y+3分之y+5=2x-7 10(x-y)-4(1-x)=3y

4分之x-3y+3分之y+5=2x-7 10(x-y)-4(1-x)=3y
x=2000除以721
y=276除以103