4-3.8x=3-4.9x
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4-3.8x=3-4.9x4-3.8x=3-4.9x4-3.8x=3-4.9x4-3.8x=3-4.9x4.9x-3.8x=3-41.1x=-1x=-10/11我晕,这种办法是不是很好用,以后都不用上
4-3.8x=3-4.9x
4-3.8x=3-4.9x
4-3.8x=3-4.9x
4-3.8x=3-4.9x
4.9x-3.8x=3-4
1.1x=-1
x=-10/11
我晕,这种办法是不是很好用,以后都不用上课了!
4-3.8x=3-4.9x
移向,得
4.9X-3.8X=3-4
1.1X=-1
X=-10/11
-4.9x挪到左边,左边变成4.9x-3.8x
右边变成3-4即1.1x=-1
x=-10/11
把-4.9X移到左边,再把 4移到右边
1.1X=-1
再把1.1除以-1
4-3.8x-3+4.9x=0
4-3+4.9x-3.8x=0
1+1.1x=0
1.1x=-1
x=-10/11
自己努力呦
4-3.8x=3-4.9x
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