求既满足不等式5x-2>3(x+1)又满足不等式1/2x-1

问题描述:

求既满足不等式5x-2>3(x+1)又满足不等式1/2x-1

数学人气:689 ℃时间:2020-04-10 21:00:00
优质解答
5x-2>3(x+1) 1/2x-13x+3 1/2x+3/2x≤7+1
2x>5 2x≤8
x>5/2 x≤4
∴ 既满足不等式5x-2>3(x+1)又满足不等式1/2x-1
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5x-2>3(x+1) 1/2x-13x+3 1/2x+3/2x≤7+1
2x>5 2x≤8
x>5/2 x≤4
∴ 既满足不等式5x-2>3(x+1)又满足不等式1/2x-1