Question

what is the value of Dx for simultaneous equation 3x-2y=6 and 2x+y=11

Answer 1

3x - 2y = 6      -------(1)

2x + y = 11      -------(2)

(2) * 2 => 4x + 2y = 22    -------(3)

(1)+(3) => 3x-2y+4x+2y = 6+22

                7x = 28

                  x = 4

y = 11-2x

y = 11-8

y = 3

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Answer 2

Step-by-step explanation:

3x-2y=6________eq.1

2x+y=11_________eq.2

multiply by 2 in eq. 2

4x+2y=22_______eq.3

on adding eq 1 and eq 2

3x-2y=6

4x+2y=2

__________

7x=8

x=8/7

put value of x in eq . 1

3×8/7-2y=6

24/7-2y=6

-2y=6-24/7

-2y =18/7

y=18/7/-2 =-9/7