Question

Find the value of k is x = 2 and y = -3 are the solution of the equation : (2x + 1)x + 3y = 2k + 7​

Answer 1

Answer:

x=2,y=-3

(2x+1)x+3y=2k+y

(2×2+1)2+3×-3=2k-3

5×2=2k-3

10=2k-3

or,

2k-3=10

2k=10+3=13

k=

$\frac{13}{2}$

I hope it's help you