-2u-1=-9(u-3)

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Solution for -2u-1=-9(u-3) equation:



-2u-1=-9(u-3)
We move all terms to the left:
-2u-1-(-9(u-3))=0
We calculate terms in parentheses: -(-9(u-3)), so:
-9(u-3)
We multiply parentheses
-9u+27
Back to the equation:
-(-9u+27)
We get rid of parentheses
-2u+9u-27-1=0
We add all the numbers together, and all the variables
7u-28=0
We move all terms containing u to the left, all other terms to the right
7u=28
u=28/7
u=4

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