laylay2380
09.07.2021 •
Mathematics
Find the solution to the system of equations x - y = 3 and x + y = 9.
(6,3). (6,-3)
(-6,3)
(-6, -3)
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Ответ:
Step-by-step explanation:
x - y = 3
x + y = 9
6 - 3 = 3
6 + 3 = 9
Ответ: