Library / /54 of 413

, 2003

Algebra Difficulty 1.0 Junior Find the answer Canada

What number, when doubled and then increased by 13, equals 89?

(A) $51$ (B) $43$ (C) $28$ (D) $38$ (E) $76$

Want a route through all this instead of an archive? The track puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.

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.