catiehohman13
28.09.2021 •
Mathematics
Please answer 50 points+25 for brainliest
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Ответ:
x + y = 200
x = y - 40; substituting x from this equation to the first:
y - 40 + y = 200
2y = 240
y = 120
Corresponding value of x:
x = 120 - 40
x = 80
The solution to this system is (80, 120)