Question

Solve the following equations by trial and error method
7n+5=26

Answer 1

7n+5=26
Putting n=1
7(1)+5=26
7+5=26
12=26
Is not true

Putting n=2
7(n)+5=26
7(2)+5=26
14+5=26
21=26
Is not true

Putting n=3
7n+5=26
7(3)+5=26
21+5=26
26=26
Lhs =rhs
N=3 is a solution