Which of the following is an algebraic equation?
1+1=2 is an equation. But it is not an algebraic equation since neither of the expressions has a variable in them.
x>5 is not an equation since the quantities x and 5 are not equal.
x+3=7 is an algebraic equation since the quantities x+3 and 7 are equal, and the expression on the left-hand side has a variable.
5<7 is not an equation.