Question

solve the system of linear equations using the guass jordan elimination method
x - 2y =8
3x + 4y =4

Answer 1

so elimination method is also the addition method so
\[-2(x-2y=8)\]
i will multiply by -2 so then i get -4y and the y's will cancel
do you understand so far

Answer 2

yes i do

Answer 3

ok so you multiply by 2 not -2 sorry so
will have
\[2x-4y=16\]
\[3x+4y=4\]
so do you see now the y's cancel now solve for x

Answer 4

so if you solve for x what do you have ?

Answer 5

12

Answer 6

\[5X=20\]

Answer 7

remember elimination method is also called the addition method

Answer 8

yes i remember

Answer 9

:) cool hope that helped

Answer 10

it did thank you very much

Answer 11

gauss elimination method just like gauss jordan method