SOLUTION: A textbook store sold a combined total of 260 math and history textbooks in a week. The number of history textbooks sold was 88 less than the number of math textbooks sold. How man
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Question 924553: A textbook store sold a combined total of 260 math and history textbooks in a week. The number of history textbooks sold was 88 less than the number of math textbooks sold. How many textbooks of each type were sold?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = math books
y = history books
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x + y = 260
y = x - 88
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put the system of linear equations into standard form
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x + y = 260
x - y = 88
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = math books = 174
y = history books = 86
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Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
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