Question

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

Answer 1

Answer:

a=2,b=1

Step-by-step explanation:

Substituting,

3a+b =7

3b +a = 5

9a+3b=21

8a=16

a=2

b=(5-2)/3=1