An interactive math lesson about evaluating an expression with one variable. Fun math practice! Improve your skills with free problems in 'Evaluate variable expressions' and thousands of other practice lessons. Our directory of Free Algebra Math Games available on the Internet - games that teach, build or strengthen your algebra math skills and concepts while having fun. Math Game Time is your destination for the best math games and homework help online. Our games are fun, educational as well as approved by parents and teachers! Math Chimp has the best 6th grade math games online. Our games are all free and organized by the common core state standards for math. Come visit us and play the best. Evaluating an Expression with one Variable. A mathematical expression can have a variable as part of the expression. If x=3, the expression 7x + 4 becomes 7 * 3 + 4 which is equal to 2. To evaluate an expression with a variable, simply substitute the value of the variable.
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September 2016
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