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

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asked Aug 28, 2021 107k views

5 votes

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

Mathematics
high-school

Andrew Wang asked

by Andrew Wang

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1 Answer

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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

Harry Steinhilber answered Sep 3, 2021

by Harry Steinhilber

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