Question

Find the value of a and b if the solution of the equation ax+by+5=0 and bx-ay-12=0, (2,-3)..​

Answer 1

Answer:

2a-3b=-5

2b+3a=12

6a-9b=-15

4b+6a=24

SUBTRACT THEM.

-13B=-39

B=3

PUTTING THE VALUE OF B IN ANY EQUATION WE GET THE VALUE OF A.

2A-3(3) =-5

2A-9=-5

2A=4

A=2

HENCE, A =2 AND B=3.

HOPE IT WILL HELP YOU.

THANKS.

Answer 2

Answer:

a = 2 and b = 3

Step-by-step explanation:

2 a - 3 b = -5

2 b + 3 a = 12

6 a - 9 b = -15

4 b + 6 a = 24

subtract them

-13 b = -39

b = 3

putting the value of b in any equation we get the value of a

2 a - 3(3) = -5

2 a - 9 = -5

2 a = 4

a = 2

hence a = 2 and b = 3