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2-u-3=-5u-9
We move all terms to the left:
2-u-3-(-5u-9)=0
We add all the numbers together, and all the variables
-1u-(-5u-9)-1=0
We get rid of parentheses
-1u+5u+9-1=0
We add all the numbers together, and all the variables
4u+8=0
We move all terms containing u to the left, all other terms to the right
4u=-8
u=-8/4
u=-2
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