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Joan likes to watch the birds in her yard.one morning, she notice that there are twice are many rrobins as bluejays. If she counted 21 bluejays and robins in all, hohow many bbl…

Joan likes to watch the birds in her yard.one morning, she notice that there are twice are many rrobins as bluejays. If she counted 21 bluejays and robins in all, hohow many bbl…
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Joan likes to watch the birds in her yard.one morning, she notice that there are twice are many rrobins as bluejays. If she counted 21 bluejays and robins in all, hohow many bbluejays did she count?

asked
User Delta Kapp
by
8.1k points

1 Answer

4 votes
x - bluejays
2x - robins


x+2x=21\\ 3x=21\\ x=7

7 bluejays
answered
User Rick Liao
by
8.1k points
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