Question

if (3,1) is the point of intersection of the lines ax + by = 7 and bx + ay = 5 , find the values of a and b ​

Answer 1

Answer:

ax plus by is equal to 7 and bx plus ay is equal to 5

now the answer is 0

Answer 2

Answer:

Step-by-step explanation:since x=3 and y=1

substituting their values

3a+b=7. i

3b+a=5. ii

adding we get

4a+4b=12

a+b=3. iii

subtracting we get

2a-2b=2

a-b=1. iv

2a=4

a=2

substituting

2-b=1

b=1

Ans=a=2,b=1