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-(u+1)=2(1-3u)-7
We move all terms to the left:
-(u+1)-(2(1-3u)-7)=0
We add all the numbers together, and all the variables
-(u+1)-(2(-3u+1)-7)=0
We get rid of parentheses
-u-(2(-3u+1)-7)-1=0
We calculate terms in parentheses: -(2(-3u+1)-7), so:We add all the numbers together, and all the variables
2(-3u+1)-7
We multiply parentheses
-6u+2-7
We add all the numbers together, and all the variables
-6u-5
Back to the equation:
-(-6u-5)
-1u-(-6u-5)-1=0
We get rid of parentheses
-1u+6u+5-1=0
We add all the numbers together, and all the variables
5u+4=0
We move all terms containing u to the left, all other terms to the right
5u=-4
u=-4/5
u=-4/5
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