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15问答网 > 0.8(x+3)=9.6方程怎么列？

0.8(x+3)=9.6方程怎么列？

2025-04-03 15:47:37

推荐回答（5个）

回答1：

解方程过程如下
0.8（x+3）=9.6
0.8x+0.8×3=9.6
0.8x+2.4=9.6
0.8x=9.6-2.4
0.8x=7.2
x=7.2÷0.8
x=9
望采纳

回答2：

0.8(x+3)=9.6
x+3=9.6÷0.8
x+3=12
x=12-3
x=9

回答3：

这里要先把括号拆开，就变成了0.8x+0.8×3=9.6，然后再把数都移到右边，左边只剩下未知数，也就是0.8x=9.6+2.4=12，然后得到x=12÷0.8=15。

回答4：

解方程过程如下0.8（x+3）=9.60.8x+0.8×3=9.60.8x+2.4=9.60.8x=9.6-2.40.8x=7.2x=7.2÷0.8x=9望采纳

回答5：

解方程过程如下 0.8（x+3）=9.6 0.8x+0.8×3=9.6 0.8x+2.4=9.6 0.8x=9.6-2.4 0.8x=7.2 x=7.2÷0.8 x=9 望采纳

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