Unformatted text preview: x + 24 or 50  y Example of an Equation: x + 24 = 76 or 50 – y = 32 You can not solve for a variable in an expression unless you are given a number to substitute for the variable. Then it is called “evaluating the expressions”. Example: Evaluate 4x when x is 5. Then we can solve for x at this point. 4 x 5 = 20. You can solve for a variable in an equation because it is set equal to something. You solve by getting the variable by itself on one side of the equal sign using addition, subtraction, multiplication, or division. Example: 2x + 4 = 20 2x + 4 – 4=204 2x=16 2x/2 = 16/2 X = 8 For Class to Translate: 10x + 10 = 50...
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 Spring '09
 UniversityofPhoenix
 Algebra, Addition, Expression, Equals sign, Plus and minus signs

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