1.2(x+3.2)=24

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1.2(x+3.2)=241.2(x+3.2)=241.2(x+3.2)=241.2(x+3.2)=241.2x+3.84=24等式两边同时减3.84,得:1.2x+3.84-3.84=24-3.84

1.2(x+3.2)=24
1.2(x+3.2)=24

1.2(x+3.2)=24
1.2(x+3.2)=24
1.2x+3.84=24
等式两边同时减3.84,得:1.2x+3.84-3.84=24-3.84,1.2x=20.16
等式两边同时除以1.2,得:1.2x÷1.2=20.16÷1.2,x=16.8
望采纳,答题不易