Question

四道不等式解1/3-8=5x/4-5{1-2(x-1)>1,x/2-1/3>=x { 1-2x/4

Answer 1

1.1/3-8-43/3

2.2x-1/3-10x+1/6+>=5x/4-5

-8x-1/6≥5x/4-5

去分母 192x-4≥30x-120

162x≥-116

x≥-58/81

3.1-2(x-1)>1 1-2x+2>1 -2x>-2 x=x 3x-2≥x 2x≥2 x≥1

综上：x为空集

4.1-2x/4