Lösa ekvationssystem med substitution del 4

Video source record: https://commons.wikimedia.org/wiki/File:L%C3%B6sa_ekvationssystem_med_substitution_del_4.webm

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Summary

A video in Swedish giving another example of "extended substitution" which can be used to solve systems of equations where regular substitution is too complicated to use.

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Details

• Source collection: Wikimedia Commons
• License: CC / Public Domain
• Category: Mathematics

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Academic references

1. Primary source record: https://commons.wikimedia.org/wiki/File:L%C3%B6sa_ekvationssystem_med_substitution_del_4.webm
2. Topic lookup: Google Scholar search for “Lösa ekvationssystem med substitution del 4”