Invariant checker

Build a small function that ensures a numeric invariant holds and reports violations clearly.

functions conditionals validation

Write a function named `check_invariant(a, b, c)` that accepts three numbers and returns `True` if the equation `a == b + c` holds, otherwise `False`. The function must handle integers and floats as inputs. No type checking is needed; numbers are guaranteed to be numeric.

Constraints

Inputs are numbers (int or float). The function should return a boolean. No imports are needed.

Example

>>> check_invariant(5, 2, 3)
True
>>> check_invariant(5, 2, 2)
False
>>> check_invariant(0.1, 0.05, 0.05)
True
>>> check_invariant(-1, 1, -2)
True

8 points ~10 min

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Hints

Think about the exact equality you need to test.

The result should be a boolean, not a string or number.

Use the comparison operator `==` directly.

Test Results

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