已知4x+3≤1+2(x-1),则|5x+3|的最小值等于

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已知4x+3≤1+2(x-1),则|5x+3|的最小值等于
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已知4x+3≤1+2(x-1),则|5x+3|的最小值等于
已知4x+3≤1+2(x-1),则|5x+3|的最小值等于

已知4x+3≤1+2(x-1),则|5x+3|的最小值等于
解不等式x<=-2,画出y=|5x+3|图像,观察可知当x=-2时取得最小值,此时最小值为7

7

x≤-2 7