Question

3x+2y/4=2x+y/5=x-y+1/6

Answer 1

(3x+2y)/4=（2x+y）/5

5*(3x+2y)=4*(2x+y)

15x+10y=8x+4y

7x= -6y

x= -6/7y

(2x+y)/5=(x-y+1)/6

6*(2x+y)=5*(x-y+1)

12x+6y=5x-5y+5

7x= -11y+5

把x= -6/7y 带入上式：

7*( -6/7y )=-11y+5

-6y=-11y+5

5y=5

y=1

因为x= -6/7y y=1

所以x= -6/7y