Question

State which of the following are equation (with a variable) given reason and tell your answer. Identify the variable from the equation with a variable.
$2n+1=11$

Answer 1

$2n+1=11$ $n\to$ variable

$2n=10$ $2,1,11\to$ constant

$n=5$

It is an equation because it consists of a constant, a variable and a sign of equality.