Problema Solution
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
9x + 11y = 86
9x – 2y = -5
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9x + 11y = 86
9x - 2y = -5
Subtract to get 13y = 91; y = 7
Now 9x - 2(7) = -5
9x - 14 = -5
9x = 9
x = 1
Answers: x = 1 and y = 7