Organize the information in a chart . . .A birdwatcher looking for robins and cardinals sees seven more cardinals
than robins on Saturday morning.
The next day, she sees twice as many robins as she did the previous day,
but only one-third of the number of cardnials.
Her two-day total was 83.
How many of each type did she see?
I got 60 robins and 23 cardinals . . . . no
On Saturday, she saw robins and cardinals.
On Sunday, she saw twice as many robins, ,
and a third as many cardinals,
She saw a total of 83 birds: .
Multiply by 3: .
. . . .