25=7-3u

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Solution for 25=7-3u equation:



25=7-3u
We move all terms to the left:
25-(7-3u)=0
We add all the numbers together, and all the variables
-(-3u+7)+25=0
We get rid of parentheses
3u-7+25=0
We add all the numbers together, and all the variables
3u+18=0
We move all terms containing u to the left, all other terms to the right
3u=-18
u=-18/3
u=-6

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