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7.84=2.87(s-6)-(-2.1)
We move all terms to the left:
7.84-(2.87(s-6)-(-2.1))=0
We calculate terms in parentheses: -(2.87(s-6)-(-2.1)), so:We get rid of parentheses
2.87(s-6)-(-2.1)
We add all the numbers together, and all the variables
2.87(s-6)+2.1
We multiply parentheses
2.87s-17.22+2.1
We add all the numbers together, and all the variables
2.87s-15.12
Back to the equation:
-(2.87s-15.12)
-2.87s+15.12+7.84=0
We add all the numbers together, and all the variables
-2.87s+22.96=0
We move all terms containing s to the left, all other terms to the right
-2.87s=-22.96
s=-22.96/-2.87
s=+8
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