Suriin ang IDNStudy.com para sa malinaw at detalyadong mga sagot. Magtanong ng anumang bagay at makatanggap ng detalyadong sagot mula sa aming komunidad ng mga eksperto.

how to solve elimination method to solve and check 2x-y=8
- x+6y=26​


Sagot :

Solve by elimination method and check

2x-y=8

- x+6y=26​

Solution:

Eliminate y

2x  -   y =  8

- x + 6y = 26​

( 2x  -   y =  8 )(6)

- x + 6y = 26​

12x - 6y = 48

- x + 6y = 26​

────────

11x       = 74

 x        = 74/11

Eliminate x

2x  -   y =  8

- x + 6y = 26​

 2x  -   y =  8

(- x + 6y = 26​)(2)

2x  -   y =  8

-2x + 12y =52

────────

        11y = 60

          y = 60/11

Checking:

2x  -   y =  8

2(74/11) - 60/11 = 8

148/11 - 60/11 = 8

88/11 = 8

8 = 8 ; ok

- x + 6y = 26​

-74/11 + 6(60/11) = 26

-74/11 + 360/11 = 26

286/11 = 26

26 = 26 ; ok

Answer:

x  = 74/11

y = 60/11

#CarryOnLearning