993  SystemEq3
What is the SUM of x and y? 1

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What is the SUM of x and y?
4x - y = 21
9x - y = 51




What is the SUM of x and y?
4x - 7y = -12
9x + 5y = -27




What is the SUM of x and y?
8x + 3y = -28
5x - 6y = 14




What is the SUM of x and y?
4x + 9y = 53
6x - 9y = -33




What is the SUM of x and y?
6x + 5y = 67
2x + 8y = 54




What is the SUM of x and y?
5x - 3y = 4
8x - 9y = -2




What is the SUM of x and y?
5x - 9y = -43
2x + 8y = 64




What is the SUM of x and y?
4x + 7y = 61
5x - 5y = -20




What is the SUM of x and y?
3x + y = 13
5x + 4y = 10




What is the SUM of x and y?
7x + 6y = -23
9x - 6y = -57




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