angelamytran17 angelamytran17

14-11-2019
Mathematics

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solve systems of three variable equations - how to do :(

solve systems of three variable equations how to do class=

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leonjunkerdj leonjunkerdj

14-11-2019

a= 6-2b-3c

then put that equation inside the first one and then the second one

you get -6*(6-2b-3c)+2b-3c=23

and 5*(6-2b-3c)+4b-3c=-12

14b-15c=59

14b-18c=18/*(-1)

--------------------

3b=41

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