aquinomoises518
06.11.2020 •
Mathematics
What is the solution of the system? 3 + 2 = 7 = – 3 + 11
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Ответ:
The equation is always false.
False
Step-by-step explanation:
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Ответ:
2x - 3y = 1
2(13 - y) - 3y = 1
26 - 2y - 3y = 1
-2y - 3y = 1 - 26
-5y = -25
y = -25/-5
y = 5
x + y = 13
x + 5 = 13
x = 13 - 5
x = 8
so, x = 8 and y = 5