作业帮解方程:x-2y=0 x=3y+1
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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,