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Solving systems of linear equations with substitution example | Algebra II | Khan Academy

479,013 views

Khan Academy

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

98%
  • 4:16 / 4:21

Speech Rate:

  • 129 wpm - Conversational

Category:

  • Education

Tags :

Intro:

Video Vocabulary

problem

/ˈpräbləm/

adjective noun

Causing trouble. unwelcome or harmful matter.

multiply

/ˈməltəˌplī/

verb

To calculate two numbers e.g. 2 x 4.

substitute

/ˈsəbstəˌt(y)o͞ot/

noun verb

person or thing acting or serving in place of another. To replace one person or thing for another.

putting

/po͝ot/

verb

To rate something in importance or value.

solving

/sälv/

verb

find answer to, explanation for, or means of effectively dealing with.

talking

/ˈtôkiNG/

adjective noun verb

engaging in speech. action of talking. To say things or ideas to someone with words.

rewrite
noun verb

instance of rewriting something. To write again to improve, or correct errors.

positive

/ˈpäzədiv/

adjective noun

Showing agreement or support for something. positive quality.

already

/ˌôlˈredē/

adverb

before or by now or time in question.

combine
noun verb

group acting together commercially. To mix several things together to form one thing.

explicitly

/ikˈsplisitlē/

adverb

in clear and often detailed manner, leaving no room for confusion or doubt.

instead

/inˈsted/

adverb

as alternative or substitute.

exercise

/ˈeksərˌsīz/

noun verb

Set of questions in a text book. To work out to become stronger and healthier.

systems

/ˈsistəm/

noun other

set of things working together as parts of mechanism. Sets of organized planned ideas that work together.

equations

/əˈkwāZHən/

noun other

statement that two values are equal. Mathematical statements showing things to be equal.

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