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-8.1u-6.86=-7.1u-1.5u-14.41
We move all terms to the left:
-8.1u-6.86-(-7.1u-1.5u-14.41)=0
We add all the numbers together, and all the variables
-8.1u-(-8.6u-14.41)-6.86=0
We get rid of parentheses
-8.1u+8.6u+14.41-6.86=0
We add all the numbers together, and all the variables
0.5u+7.55=0
We move all terms containing u to the left, all other terms to the right
0.5u=-7.55
u=-7.55/0.5
u=-15+0.05/0.5
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