Which of the following pairs is a solution to the following system of equations: - x + 3y = 9 2x + 5y = 4 A. (- 15, - 2) B. (- 15, 2) C. (- 3, 2) (3, - 2) E. (15, 2)

 x = -3  y = 2    So (-3,2)

Step-by-step explanation:

- x + 3y = 9 Multiply everything by 2 then add to the second equation.

2x + 5y = 4

-2x +6y =18   then 2x-2x=0  Add the other terms and solve for y.

     11y = 22    divide both sides by 11 yo get  y = 2  Substitute that into either one and solve for x.

2x + 5y = 4

2x + 5(2) = 4

2x + 10 = 4  subtract 10 from both sides   2x = 4 -10  

2x = -6   so divide both sides by 2 to get x = -3

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step-by-step explanation:

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