Question

if the point (3,-2)and (9,2)lie on the graph of the equation ax+by=12 find the value of a and b Write Proper Solution Pure Solution Krne Pad Mai Apko Brainlist Answer Dunga

Answer 1

Answer:

a=2,b=(-3)

Step-by-step explanation:

(3)a+(-2)b=12

3a-2b=12----------(1)

(9)a+(2)b=12

9a+2b=12----------(2)

adding equation(1) and equation(2):-

12a=24

a=24/12

a=2

putting 'a' in equation(2):-

18+2b=12

2b=(-6)

b=(-3)