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235=-5(1+8n)
We move all terms to the left:
235-(-5(1+8n))=0
We add all the numbers together, and all the variables
-(-5(8n+1))+235=0
We calculate terms in parentheses: -(-5(8n+1)), so:We get rid of parentheses
-5(8n+1)
We multiply parentheses
-40n-5
Back to the equation:
-(-40n-5)
40n+5+235=0
We add all the numbers together, and all the variables
40n+240=0
We move all terms containing n to the left, all other terms to the right
40n=-240
n=-240/40
n=-6
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