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rosieposie27
30.11.2019 •
Mathematics
Try this question solve using substitution i’ll give you brainliest
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Ответ:
(-4, -3)
Step-by-step explanation:
First divide the second equation by -1. It becomes y = -3x - 15.
Then, substitute this equation into the y of the first equation.
x + 2(-3x - 15) = -10
x - 6x - 30 = -10
-5x = 20
x = -4
Then substitute the x value into the equation x + 2y = -10
-4 + 2y = -10
2y = -6
y = -3
Ответ:
I think the answer would be D