(1)3x+4>x 、 (2)3(y-4)-2(4y-3)>3(y-8) (3)(x-2)/6≥x/3+1
问题描述:
(1)3x+4>x 、 (2)3(y-4)-2(4y-3)>3(y-8) (3)(x-2)/6≥x/3+1
(4) (3x+1)/3-1<(7x-3)/5+2(x-2)/15
答
(1)3x+4>x
移项得3x-x>-4
合并同类项得2x>-4
系数化成1得x>-2
(2)3(y-4)-2(4y-3)>3(y-8)
去括号得3y-8-8y+6>3y-24
移项得3y-8y-3y>-24+8-6
合并同类项得-8y>-22
系数化成1得y