5=7(3u-u)+u+2u

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Solution for 5=7(3u-u)+u+2u equation:



5=7(3u-u)+u+2u
We move all terms to the left:
5-(7(3u-u)+u+2u)=0
We add all the numbers together, and all the variables
-(7(+2u)+u+2u)+5=0
We calculate terms in parentheses: -(7(+2u)+u+2u), so:
7(+2u)+u+2u
We add all the numbers together, and all the variables
3u+7(+2u)
We multiply parentheses
3u+14u
We add all the numbers together, and all the variables
17u
Back to the equation:
-(17u)
We move all terms containing u to the left, all other terms to the right
-17u=-5
u=-5/-17
u=5/17

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