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Algebra Difficulty 1.0 Junior Find the answer Canada

The value of $\frac{5+4-3}{5+4+3}$ is

(A) $-1$ (B) $\frac{1}{3}$ (C) $2$ (D) $\frac{1}{2}$ (E) $-\frac{1}{2}$

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.