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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. Something difficult to deal with or causes trouble.

multiply

/ˈməltəˌplī/

verb

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

substitute

/ˈsəbstəˌt(y)o͞ot/

noun verb

A person or thing acting in place of another. To perform the tasks instead of someone else.

putting

/po͝ot/

verb

To move or place a thing in a particular position.

solving

/sälv/

verb

To figure out a way to handle a difficult problem.

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. write something again so as to alter or improve it.

positive

/ˈpäzədiv/

adjective noun

characterized by presence of distinguishing features. positive quality.

already

/ˌôlˈredē/

adverb

before or by now or time in question.

combine
noun verb

group acting together commercially. unite or merge.

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

physical activity done for health and fitness. use faculty, right, etc..

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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