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15.1+2.2u=-11.25+0.5u
We move all terms to the left:
15.1+2.2u-(-11.25+0.5u)=0
We add all the numbers together, and all the variables
2.2u-(0.5u-11.25)+15.1=0
We get rid of parentheses
2.2u-0.5u+11.25+15.1=0
We add all the numbers together, and all the variables
1.7u+26.35=0
We move all terms containing u to the left, all other terms to the right
1.7u=-26.35
u=-26.35/1.7
u=-15+0.85/1.7
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