3(x-1)+(x+3)/5 > (5x-1)/2
对上式两边通分,则:
30(x-1)+2(x+3) > 5(5x-1)
30x-30+2x+6 > 25x-5
移项合并同类项:
7x > 19
因此:
x>19/7
0.5-0.4x≤0.4x+1.5
移项得:
0.5-1.5 ≤ 0.4x+0.4x
-1 ≤ 0.8x
因此:
x ≥ -5/4
3(x-1)+(x+3)/5 > (5x-1)/2
对上式两边通分,则:
30(x-1)+2(x+3) > 5(5x-1)
30x-30+2x+6 > 25x-5
移项合并同类项:
7x > 19
因此:
x>19/7
0.5-0.4x≤0.4x+1.5
移项得:
0.5-1.5 ≤ 0.4x+0.4x
-1 ≤ 0.8x
因此:
x ≥ -5/4