644  SystemEq1
What is the SUM of x and y? 2

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




What is the SUM of x and y?
x + 2y = 7
2x - y = 9




What is the SUM of x and y?
2x - 3y = -21
3x - 2y = -19




What is the SUM of x and y?
3x - 3y = -9
2x + 3y = 19




What is the SUM of x and y?
2x - 3y = -12
2x - 2y = -10




What is the SUM of x and y?
3x - 3y = 0
x - 3y = -2




What is the SUM of x and y?
3x - 2y = 10
3x - y = 11




What is the SUM of x and y?
3x - y = -1
3x + 2y = -7




What is the SUM of x and y?
2x + y = -11
x - y = -1




What is the SUM of x and y?
x - y = 12
2x - y = 19




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644    6 6 2 7 -1 ( 20 )   2 5 -3 -7 2 ( -1 )   [[ 19 ]]