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数学
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x=x/12+15+30(过程)
人气:103 ℃ 时间:2020-05-17 02:08:46
解答
x=x/12+15+30
11x/12=45
x=45*12/11=540/11
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30%x+12=15
x=12分之x+15+30
256×5=320X 15×(30-X)=25×12 怎么解
12.x+15=2.x-30
X/15+1=(X-30)/12
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