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5u = 56 -3u i dont get how this works ;-; :p
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5u = 56 -3u i dont get how this works ;-; :p

User Andrew Wang
by
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1 Answer

4 votes
You add +3u to both sides to get rid of -3u so 5u+3u=8u
8u=56
Now u want to divide the 8 on both sides of the equation so 56/8=7 and 8/u= would just leave “u”
So u=7
User Harry Steinhilber
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