drbob222,math

Am going correct with this one.

It is estimated that the Earth is losing 4000 species of plants and animals every year. If S represents the number of species living last year, how many species are on Earth this year?

S-4000=1
S=1+4000
S=4001 of species we have on this earth this year

Please don't post duplicates.

sorry I didn't mean to.

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