add 8 and 2 then take away 3. even u should get 7u.
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3u - 5u= - 2u=====
2u + 1 = 5u + 5 2u - 5u = 5 - 1 -3u = 4 3u = -4 u = -4/3
T - U = 3T = 2U + 1(2U + 1) - U = 3U + 1 = 3U = 2T = 2U + 1 = 5The number is 52.
If: -52 --3u = 8 then u = 20
6 + 3u can be factored into 2(3 + u)