The sum of two numbers is 15, and their difference is 7. Let x be the larger number and y be the smaller number. (a) Write the system of equations for the problem. (b) Find the unknown numbers by solving the system of equations graphically. (a) Write the first equation. x + y = 15 Write the second equation. x - y = 7 (b) Use the graphing tool to graph the system.
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(a) The system of equations based on the problem is: Show more…
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