13.2x-3.6=57.6
13.2x=57.6+3.6
x=61.2÷13.2
x≈4.636
13.2x-3.6=57.6
13.2x=57.6+3.6
13.2x=61.2
x=62.1 除以 13.2
x约等于 4.64
看
13.2x-3.6=57.6
13.2x=57.6-3.6
13.2x=54
x=54/13.2
x=4.090909
:13.2x-3.6=57.6
解:13.2x=57.6+3.6
13.2x=61.2
x≈4.64
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