How do a system of four equations with Python?
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The need to find a solution to the system is to provide an example of such a combination of natural numbers r, b, y, p, to be followed by the following equation system.
(r + b + y) = 12 (r + b + p) = 16 (r + y + p) = 14 (y + b + p) = 24
We know this combination is one.
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For example, almost in the forehead, but quicker:
for r in range(-100, 100): for b in range(-100, 100): y = 12 - r - b p = 16 - r - b if r + y + p == 14 and y + b + p == 24: print(b, p, r, y)
In fact, the task on paper is:
We're folding all equations and getting
(r + b + y) + (r + b + p) + (r + y + p) + (y + b + p) = 12 + 16 + 14 + 24 3r + 3b + 3p + 3y = 66 r + b + p + y = 22
further deduct from the equation all equations and variables are obtained:
(r + b + p + y) - (r + b + y) = 22 - 12 p = 10
(r + b + p + y) - (r + b + p) = 22 - 16
y = 6(r + b + p + y) - (r + y + p) = 22 - 14
b = 8(r + b + p + y) - (y + b + p) = 22 - 24
r = -2