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-87.854=6.2(1-4.1a)
We move all terms to the left:
-87.854-(6.2(1-4.1a))=0
We add all the numbers together, and all the variables
-(6.2(-4.1a+1))-87.854=0
We calculate terms in parentheses: -(6.2(-4.1a+1)), so:We get rid of parentheses
6.2(-4.1a+1)
We multiply parentheses
-24.8a+6.2
Back to the equation:
-(-24.8a+6.2)
24.8a-6.2-87.854=0
We add all the numbers together, and all the variables
24.8a-94.054=0
We move all terms containing a to the left, all other terms to the right
24.8a=94.054
a=94.054/24.8
a=3+11.8827085852/14.9939540508
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