College Algebra / Alg 165 · Atom · ~20 seconds
Compound Inequalities
Video not yet published
to the StudyWalks catalog
to the StudyWalks catalog
State
A compound inequality chains two conditions around one expression; every solving move applies to all three parts at once.
Show
−3 < 2x + 1 ≤ 7: subtract 1 and divide by 2 throughout, giving −2 < x ≤ 3 — the interval (−2, 3].
Watch for
Whatever touches the middle touches both ends.
Builds on
- Nothing — this is a starting point.
Unlocks
- Nothing yet depends on this.