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What is the difference between expression and equation?
The difference between these two is that an expression only contains variables, numbers, and mathematical symbols, and an equation contains two expression with an equal sign that separate them. For example, while an expression is "2x-1", an equation is "2x-1 = 5x."
How do you evaluate an expression when given values for the variables?
You replace each variable by its value. Then you do the indicated calculations.
What is a numerical expression?
5+6+36-4=43 * * * * * That is an equation, not an expression. An expression might be 5+6+36-4 or 43 but when you put the + sign (or <, > etc) it becomes an equation (or inequality).
Does a variable expression consists only of numbers?
An algebraic expression can have a mixture of numbers and variables, but it does not contain an equals sign.
How do you perform arithmetic operations on binary numbers?
There are a few rules to perform arithmetic operations in binary numbers. According to those rules you can add or subtract binary numbers. There are only two arithmetic operations used in binary numbers, they are addition and subtraction.
