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Solve by the elimination method.
9x+8y=−64 , 5x−8y=−48 (FIND THE ORDERED PAIR)? What are rift boundaries caused by? Please help to write the geometric series using sigma notation and calculate the value of the sum. 1+ (⅖)+(4/25)+(8/125)+(16/625)+...? How to find the maximum and minimum of x² - 10x - y² on the ellipse x² + 4y² = 16? Solve by the elimination method. 4a+3b=−11 , −4a+b=23 (FIND THE ORDERED PAIR)?