Question

3. The solutions of followings simultaneous equations is ...... 3x+y+1=0 and
2x-3y+8=0 *​

Answer 1

Answer:

x is -1 and y is 2

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Answer 2

Answer:

Good morning mate ☺️

3x + y = -1 ---> 1

2x - 3y = -8 ---> 2

multiply equation 1 by 2 and equation 2 by 3

3x + y = -1

6x + 2y = -2 ---> 3

2x - 3y = -8

6x - 9y = -24 --->

Solving 3 and 4

6x + 2y = -2

6x - 9y = -24

- + +

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

11 y = 22

y = 22/11

y = 2

substitute the value of y = 2 in equation 1

3x + y = -1

3x + 2 = -1

3x = -1 - 2

3x = -3

x = -3/3

x = -1

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