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

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What is the SUM of x and y?
3x - 3y = -3
6x + 7y = 20




What is the SUM of x and y?
2x + 6y = 6
8x + 4y = 4




What is the SUM of x and y?
5x + 7y = -28
9x - y = 4




What is the SUM of x and y?
6x - 2y = 6
5x - 5y = 15




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

What is the SUM of x and y?
7x - 5y = 2
6x - 3y = 3




What is the SUM of x and y?
9x - 4y = 57
9x + 4y = 33




What is the SUM of x and y?
5x - 9y = 29
3x + 6y = 6




What is the SUM of x and y?
9x - 7y = 26
3x - 9y = 42




What is the SUM of x and y?
4x - 4y = -4
3x - 2y = -7

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640    3 1 -4 -3 2 ( -1 )   2 2 3 -6 -9 ( -8 )   [[ -9 ]]