4X减8=2(X减1)怎么算?
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4X减8=2(X减1)怎么算?
4X减8=2(X减1)怎么算?
4X减8=2(X减1)怎么算?
4x-8=2(x-1)
4x-8=2x-2
4x-2x=8-2
2x=6
x=3
(移项法)
4x-8=2x-2,2x=6,x=3
4X-8=2(X-1)
4X-8=2X-2
2X=6
X=3
4x-8=2(x-1),
4x-8=2x-2,
4x-2x=8-2
2x=6,
x=3
4X-8=2(x-1)
4x-8=2x-2
4x-2x=8-2
2x=6
x=3
4x-8=2(x-1)是吧
4x-8=2x-2
移项得:4x-2x=8-2
2x=6
x=3