Question

The coordinates of the point of intersection of the lines

ax + by = 9 and bx + ay = 5 are (3, -1). Find the values

of a and b.
Explain with the steps.​

Answer 1

Answer:

4

Step-by-step explanation:

3a - b = 9             = (1) x 3

3b - a = 5             = (2)

-3b + 9a = 27

3b - a = 5

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8a = 32

a = 4

On putting value of a in equation (2)

3b – 4 = 5  

3b = 9  

b = 3

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