Question ! (1 Viewer)

[pt1]

Hey how would you do this question part (III)?
Thanks

 

[2xL]

L = a + (K-1)d = a + Kd - d
K = a + (L-1)d = a + Ld - d

L - Kd = a - d
K - Ld = a -d

L - Kd = K - Ld
Kd - Ld = L - k
d(K - L) = L - K
d = -1

 

[pt1]

Thanks alot