Question

solve this questions​

Answer 1

$\tt a= \frac{9(3) - 5( - 1)}{ {(3)}^{2} - {( - 1)}^{2} } = \frac{27 + 5}{9 - 1} = \frac{34}{8} = \frac{17}{4}$

Answer 2

Answer:

★Solution :

➡️ Point of intersection will satisfy both the equations.

3a - b = 9 ....(1) x 3

3a - a = 5 ....(2)

-3b + 9a = 27

3b - a = 5

¹ 8a = 32 ⁴

( 8x1=8 , 8x4=32 )

a = 4

On putting value of a in equation (2)

3b - 4 = 5

¹ 3b = 9 ³

( 3x1=3 , 3x4=9 )

b = 3.

Hence the values of a and b are a = 4 , b = 3.

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