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51问答网 > 5×4 (x-5)×4×0.8≤38怎么解？

5×4 (x-5)×4×0.8≤38怎么解？

2025-03-14 22:22:22

推荐回答（3个）

回答1：

解不等式:
5x4(x-5)x4x0.8≤38
20x4x0.8(x-5)≤38
64(x-5)≤38
x-5≤38/64
x-5≤0.59375
x≤0.59375+5
x≤5.59375

回答2：

5*4*0.8*4*（X -5）≦38
64X-320≦38
X≦5.59375

回答3：

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