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The sum of 2 numbers ( x and y ) is +12 The difference of the same 2 numbers is -4 1. Which method will you use and why? 2. How will you set up the equation needed to solve? 3. What is the solution expressed as an ordered pair? (x,y) |
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Answer» IN THIS WE CAN EASILY FIND THE EQUATION THAN ANY OTHER METHOD .CONDITION 1----X+Y=12CONDITION 2---X-Y=-41 SUBTRACT BOTH THE EQUATION,X+Y=12X-Y=-41-__+__+__2Y=53/2 Y=53/4PUTTING VALUE OF Y INEQATION 1 X+53/4=12 X=12-53/4 X=-5/4.VERFICATION,X+Y=12-5/4+53/4-5+53/448/4=12VERIFIED |
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