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Anonymous
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3u - 5u= - 2u=====
2u + 1 = 5u + 5 2u - 5u = 5 - 1 -3u = 4 3u = -4 u = -4/3
add 8 and 2 then take away 3. even u should get 7u.
3u2-1
6t -2t + 5u = 4t - 5u