-9u+5=-7(u-3)

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Solution for -9u+5=-7(u-3) equation:



-9u+5=-7(u-3)
We move all terms to the left:
-9u+5-(-7(u-3))=0
We calculate terms in parentheses: -(-7(u-3)), so:
-7(u-3)
We multiply parentheses
-7u+21
Back to the equation:
-(-7u+21)
We get rid of parentheses
-9u+7u-21+5=0
We add all the numbers together, and all the variables
-2u-16=0
We move all terms containing u to the left, all other terms to the right
-2u=16
u=16/-2
u=-8

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