Maths Monster
GF.8.4

Simultaneous equations - third unknown

Solve a pair of simultaneous equations involving a third unknown

3 hand-picked video lessons for this topic, each checked for relevance and clarity, graded by difficulty and labelled by depth. Press play to watch — nothing loads from YouTube until you do.

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8:33
Grade 8–9 Core 🇬🇧 UK

Three Simultaneous Equations

1st Class Maths 65K views

Aimed straight at AQA Further Maths, this explains solving three equations with three unknowns.

9:42
Grade 7–9 Core 🇬🇧 UK

Simultaneous Equations with Three Unknowns

corbettmaths 154K views

Corbettmaths clearly walks through solving three simultaneous equations with three unknowns step by step.

6:47
Grade 7–9 Core 🇦🇺 Australia

Simultaneous Equations Three Variables Using Elimination - Math lesson

tecmath 362K views

Friendly elimination walkthrough reducing three variables down to a single answer.