The student was able to buy 2 small notebooks and 4 large notebooks for a total of $60.
Assume that the small notebooks are x and the large notebooks are y.
The first expression would be:
Number of small notebooks bought + Number of large bought = 6
x + y = 6
The small books cost $6 and the large ones cost $12. A total of $60 was spent on both. As an expression, it will be:
(Number of small books x price of small books) + (Number of large books x price of large books) = Total cost
6x + 12y = 60
Express x in terms of y to solve:
x + y = 6
x = 6 - y
Solve the equation to get y:
6x + 12y = 60
(6 x (6 - y)) + 12y = 60
36 - 6y + 12y = 60
6y = 60 - 36
y = 24 / 6
y = 4 large notebooks
Number of small notebooks is:
= 6 books bought - 4 large books
= 2 small notebooks
In conclusion, the student bought 2 small notebooks and 4 large notebooks
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