7-4(x-3)≤2(x-1)

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7-4(x-3)≤2(x-1)

7-4(x-3)≤2(x-1)
7-4(x-3)≤2(x-1)

7-4(x-3)≤2(x-1)
7-4x+12≤2x-2
6x≥21
x≥21/6

答案是

收起

答案是21/6<等于x,嘻嘻,过程就没有咯,亲~~~

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