求不等式3(x+1)大于等于5x-9

问题描述:

求不等式3(x+1)大于等于5x-9

x小于等于6

3(x+1)≥5x-9
3x+1≥5x-9
5x-3x≤1+9
2x≤10
x≤5

3(x+1)≥5x-9
3x+3≥5x-9
-2x≥-12
x≤6

3x+3大于等于5x-9
-2x大于等于-12
x小于等于6