chessacs6540
20.09.2019 •
Mathematics
What is the solution to 2x+3y=9 over x-2y=1
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Ответ:
2x + 3y = 9
x - 2y = 1
-2(x - 2y = 1)
-2x + 4y = -2
2x + 3y = 9
7y = 7
y = 1
2x + 3(1) = 9
2x + 3 = 9
2x = 6
x = 3
Solution (3, 1)
Ответ:
Yes
Step-by-step explanation: