Find the non-permissible replacement for the variable:
2x+1
_
x+2

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

1/3 + 1/5 = 8/15.

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∠cbe and ∠deb are same-side interior angles.

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d is the answer

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