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31.08=-2.6(2.7n-2.7)+3
We move all terms to the left:
31.08-(-2.6(2.7n-2.7)+3)=0
We calculate terms in parentheses: -(-2.6(2.7n-2.7)+3), so:We get rid of parentheses
-2.6(2.7n-2.7)+3
We multiply parentheses
-5.2n+7.02+3
We add all the numbers together, and all the variables
-5.2n+10.02
Back to the equation:
-(-5.2n+10.02)
5.2n-10.02+31.08=0
We add all the numbers together, and all the variables
5.2n+21.06=0
We move all terms containing n to the left, all other terms to the right
5.2n=-21.06
n=-21.06/5.2
n=-4+0.26/5.2
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