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17.12.2020 •
Mathematics
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Ответ:
You can use substitution or elimination method to solve. I used substitution.
2(1/2y + 5) + 3y = -14
y + 10 + 3y = -14
4y + 10 = -14
4y = -24
y = -6
x = 1/2y + 5 = 1/2(-6) + 5 = -3 + 5 = 2
x = 2, y = -6
A