解方程:x-2y=0 x=3y+1

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解方程:x-2y=0x=3y+1解方程:x-2y=0x=3y+1解方程:x-2y=0x=3y+1x-2y=0,x=3y+1,(3y+1)-2y=0,3y-2y+1=0,y+1=0,y=-1,x=3y+

解方程:x-2y=0 x=3y+1
解方程:x-2y=0 x=3y+1

解方程:x-2y=0 x=3y+1
x-2y=0, x=3y+1, ( 3y+1) - 2y=0 , 3y-2y+1 = 0, y+1 = 0, y = -1, x = 3y + 1, = 3(-1) +1 = x = -2,