28+18u=-21+14u

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Solution for 28+18u=-21+14u equation: 



28+18u=-21+14u

We move all terms to the left:

28+18u-(-21+14u)=0

We add all the numbers together, and all the variables

18u-(14u-21)+28=0

We get rid of parentheses

18u-14u+21+28=0

We add all the numbers together, and all the variables

4u+49=0

We move all terms containing u to the left, all other terms to the right

4u=-49

u=-49/4

u=-12+1/4

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