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6u+30=-3(u-2)
We move all terms to the left:
6u+30-(-3(u-2))=0
We calculate terms in parentheses: -(-3(u-2)), so:We get rid of parentheses
-3(u-2)
We multiply parentheses
-3u+6
Back to the equation:
-(-3u+6)
6u+3u-6+30=0
We add all the numbers together, and all the variables
9u+24=0
We move all terms containing u to the left, all other terms to the right
9u=-24
u=-24/9
u=-2+2/3
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