6x-8=8x-4 6x-8x=8-4-2x=4x=4÷(-2)x=-2 不懂可追问,有帮助请采纳,谢谢!
6x-8=8x-46x-8x=-4+8-2x=4x=-2
4-8=8x-6x-4=2xx=-4/2=-2
8x-6x=-8+42x=-4x=-2请采纳
6x=8x-4+86x=8x+4-2x=4x=-2
6x-6x=8x-6x-4+82x+4=0x=-2