katie713518
27.09.2019 •
Mathematics
The solution to the system of equation below is (−2, −1). 2x − 3y = −1 11x − 9y = −13 when the first equation is multiplied by −3, the sum of the two equations is equivalent to 5x = −10. which system of equations will also have a solution of (−2, −1)? (a) 5x = −10 11x − 9y = −13 (b) 2x 9y = −1 11x − 9y = −13 (c) −6x 9y = −1 11x − 9y = −13 (d) −6x 3y = −1 5x = −10
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Ответ:
Answer;5x = −10
11x − 9y = −13
Step-by-step explanation:
When the first equation is multiplied by -3, the sum of the two equation and any of the original equations will have the same solution as the original equations. Hence 5x = -10 and 11x - 9x = -13 will have a solution of (-2, -1).
Ответ: