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19-09-2019
Mathematics

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Is the ordered pair (−4, −3) is a solution of the system?

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x-y=-1
3x+3y=-21

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Starset3301 Starset3301

19-09-2019

(-4,-3) is the solution

Step-by-step explanation:

because -4 minus -3 equals -1. And -4 as x and -3 as y, 3x+3y=-21 is true

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