Question

5. If x= 4 and y=-3 is a solution of 4x = k-3y, then find the value of k.​

Answer 1

Answer:

k = 7

Step-by-step explanation:

we know that,

x = 4

y = -3

4x = k - 3y

4(4) = k - 3(-3)[negative negative become positive]

16 = k + 9

16 - 9 = I

7 = k

recheck,

L.H.S. = 4 × 4

= 16

R.H.S. = 7 - 3(-3)

= 7 + 9 [negative negative beacom positive]

= 16