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3.8=0.5(8n-4.2)
We move all terms to the left:
3.8-(0.5(8n-4.2))=0
We calculate terms in parentheses: -(0.5(8n-4.2)), so:We get rid of parentheses
0.5(8n-4.2)
We multiply parentheses
4n-2.1
Back to the equation:
-(4n-2.1)
-4n+2.1+3.8=0
We add all the numbers together, and all the variables
-4n+5.9=0
We move all terms containing n to the left, all other terms to the right
-4n=-5.9
n=-5.9/-4
n=1+1/2.10526315789
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