State which of the following are equations (with a variable). Give a reason for your answer. Identify the variable from the equations with a variable.
7-x=5
As the given expression 7-x=5 is an equation as it contains equal sign, and also have a variable x
State which of the following are equations (with a variable). Give reasons for your answer. Identify the variable from the equations with a variable.17=x+7
State which of the following are equations ( with a variable). Give reason for your answer. Identify the variable from the equations with a variable.
(t-7)>5
t-7>5