Question

Ax4 = e
B÷4 = e
C-4 = e
D+4 = e
A+B+C+D =100
Find the value of
e

Answer 1

A×4=e
A=e/4

B/4=e
B=4e

C-4=e
C=e+4

D+4=e
D=e-4

A+B+C+D=100......(1)
apply the values in equation (1).

e/4+4e+e+4+e-4=100
e/4+4e+2e=100
e/4+6e=100
e+24e/4=100
25e/4=100
25e=100*4
25e=400
ie, e=400/25=16//
The value of 'e' is 16