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-2n-3(1+5n)=-20
We move all terms to the left:
-2n-3(1+5n)-(-20)=0
We add all the numbers together, and all the variables
-2n-3(5n+1)-(-20)=0
We add all the numbers together, and all the variables
-2n-3(5n+1)+20=0
We multiply parentheses
-2n-15n-3+20=0
We add all the numbers together, and all the variables
-17n+17=0
We move all terms containing n to the left, all other terms to the right
-17n=-17
n=-17/-17
n=1
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