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-8(1-8m)-2m=-504
We move all terms to the left:
-8(1-8m)-2m-(-504)=0
We add all the numbers together, and all the variables
-8(-8m+1)-2m-(-504)=0
We add all the numbers together, and all the variables
-2m-8(-8m+1)+504=0
We multiply parentheses
-2m+64m-8+504=0
We add all the numbers together, and all the variables
62m+496=0
We move all terms containing m to the left, all other terms to the right
62m=-496
m=-496/62
m=-8
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