Backsolving means plugging the answer choices into the question until one works. On enhanced Math you have four choices (A–D). Start in the middle, then move up or down.
When to backsolve
- The answers are numbers and the algebra is messy.
- The question is "what is x" and you can test x quickly.
Common traps: common Math mistakes.
When not to
Graph or word-setup items where substituting four choices takes longer than writing one equation. Fifty minutes is still the clock.
The bottom line
Backsolve when the choices are cheaper than the algebra. It is a tool, not a personality.
Start practicing
Start with a free diagnostic, then drill your weak spots with 15-question quizzes and track how you're doing across Reading, English, and Math. Compare plans whenever you're ready to go further.
This article offers general ACT prep guidance. The ACT can change from year to year, including its format, scoring, policies, test dates, and fees, so always confirm the latest details on the official ACT website at act.org before you make decisions. ACT® is a registered trademark of ACT, Inc. thirty-six is not affiliated with, endorsed by, or sponsored by ACT.