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16.03.2020 •
Mathematics
2x + y = 3
4x + 3y = 1
Solved
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Ответ:
x = 4, y = -5 OR (4, -5)
Step-by-step explanation:
Step 1: Solve for y in the first equation
2x + y - 2x = 3 - 2x
y = 3 - 2x
Step 2: Plug in that into the second equation to get x
4x + 3(3 - 2x) = 1
4x + 9 - 6x = 1
-2x + 9 - 9 = 1 - 9
-2x / -2 = -8 / -2
x = 4
Step 3: Use x to find y
y = 3 - 2(4)
y = 3 - 8
y = -5
x = 4, y = -5 OR (4, -5)
Ответ: