520  SystemEq3
What is the SUM of x and y? 2

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What is the SUM of x and y?
2x + y = -5
8x + 4y = -20




What is the SUM of x and y?
9x - 5y = -8
8x + 9y = 87




What is the SUM of x and y?
6x + 7y = 45
2x - 7y = -13




What is the SUM of x and y?
9x + y = -46
4x - 6y = -14




What is the SUM of x and y?
5x - y = -8
2x + 4y = -12




What is the SUM of x and y?
6x - 7y = 35
8x - 9y = 45




What is the SUM of x and y?
6x - 2y = -18
5x - y = -11




What is the SUM of x and y?
3x - 3y = -15
5x - 3y = -11




What is the SUM of x and y?
4x + 8y = 12
6x + 8y = 10




What is the SUM of x and y?
9x - 9y = 18
4x + 3y = 36




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520    -4 10 7 -6 -4 ( 3 )   -5 5 9 1 10 ( 20 )   [[ 23 ]]