Question

solve the simultaneous equation 2x-5y=9
3x+4y=2

Answer 1

Answer:

x=2. y= -1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

2x- 5y = 9.........(1)

3x+ 4y = 2.........(2)

solving equation 1 and 2 with elimination method

6x- 15y = 23

6x +8y = 4

- 23y = 19

y = - 19/23

putting the value of y in eq. 1

2x - 5 y = 9

2x - 5 ( -19/23 ) = 9

2x +95 /23 = 9

46x +95 = 207

46x = 207 -95

x= 112/ 46

x= 56/23