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2.81(j+1)=8.43
We move all terms to the left:
2.81(j+1)-(8.43)=0
We add all the numbers together, and all the variables
2.81(j+1)-8.43=0
We multiply parentheses
2.81j+2.81-8.43=0
We add all the numbers together, and all the variables
2.81j-5.62=0
We move all terms containing j to the left, all other terms to the right
2.81j=5.62
j=5.62/2.81
j=2
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