4(x-0.8)=9
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![4(x-0.8)=9](/uploads/image/z/11462731-43-1.jpg?t=4%28x-0.8%29%3D9)
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4(x-0.8)=9
4(x-0.8)=9
4(x-0.8)=9
4x-3.2=9
4x=12.2
x=3.05
5.3
4x-3.2=9
4x=9+3.2=12.2
x=12.2/4=3.05
等式两边同时除以4得:
x-0.8=2.25
x=3.05
4X-3.2=9 4X=9+3.2 4X=12.2 X=3.05 望采纳
4✘-3.2=9
4✘=9-3.2
4✘=5.8
✘=1.45