解不等式解不等式3[x-2(x-7)]小于等于4x

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解不等式解不等式3[x-2(x-7)]小于等于4x解不等式解不等式3[x-2(x-7)]小于等于4x解不等式解不等式3[x-2(x-7)]小于等于4x3[x-2(x-7)]小于等于4x3(x-2x+1

解不等式解不等式3[x-2(x-7)]小于等于4x
解不等式解不等式3[x-2(x-7)]小于等于4x

解不等式解不等式3[x-2(x-7)]小于等于4x
3[x-2(x-7)]小于等于4x
3(x-2x+14)≤4x
-3x+42≤4x
7x≥42
x≥6