質問: fill in the blanks with correct inequality sign `(gt,lt,ge,le)`. (i) `5xlt20rarrx......4` (ii) `-3xgt9rarr x ......-3` (iii) `4xgt -16 rarr x.....-4` (iv) `-6x le -18 rarr x ......3` (v) `xgt-3rarr -2x ......6` (vi) `altb and c lt 0 rarr (a)/(b)......(b)/(c)` (vii) `p-q=-3 rarr p......q` (viii) `u-v=2rarr u ...... v` fill in the blanks with correct inequality sign `(gt,lt,ge,le)`. (i) `5xlt20rarrx......4` (ii) `-3xgt9rarr x ......-3` (iii) `4xgt -16 rarr x.....-4` (iv) `-6x le -18 rarr x ......3` (v) `xgt-3rarr -2x ......6` (vi) `altb and c lt 0 rarr (a)/(b)......(b)/(c)` (vii) `p-q=-3 rarr p......q` (viii) `u-v=2rarr u ...... v`
回答: answer: `(i) lt (ii)lt(iii)gt(iv) ge(v)lt(vi) gt(vii) lt(viii) gt` solution: `(ii) -3xgt9rarrxlt-3." "(iii)4xgt-16rarrxgt-4.` `(iv) -6xle-18rarrxge3." "(v)xgt-3rarr-2xlt6`. `(vi) a ltb and c lt0 rarr (a)/(c)gt(b)/(c)." " (vii)p-q=-3 rarr pltq`.