21u-98=49

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Solution for 21u-98=49 equation: 



21u-98=49

We move all terms to the left:

21u-98-(49)=0

We add all the numbers together, and all the variables

21u-147=0

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

21u=147

u=147/21

u=7

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