{3(x-3)小于等于9-(x+6) {4+x>4x-17 求不等式组

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{3(x-3)小于等于9-(x+6){4+x>4x-17求不等式组{3(x-3)小于等于9-(x+6){4+x>4x-17求不等式组{3(x-3)小于等于9-(x+6){4+x>4x-17求不等式组3

{3(x-3)小于等于9-(x+6) {4+x>4x-17 求不等式组
{3(x-3)小于等于9-(x+6) {4+x>4x-17 求不等式组

{3(x-3)小于等于9-(x+6) {4+x>4x-17 求不等式组
3x-9≤9-x-6 4x≤12 x≤3 -3x>-21 x