Question 1096663
Let n be the amount of members in the Peace club. Then, n+20 equals the amount of members plus new members. So:
4000/n=4000/(n+20) +10
4000(n+20)=4000n+10(nē+20n)
4000n+80000=10nē+4200n
10nē+200n-80000=0
nē+20n-8000=0
solve for n
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