Solving for an Expression (without plugging in any values): SAT Math Practice Problem (Expressions)

In this video we start with simple examples and then work our way up to more difficult practice problems. The key concept practiced is identifying a pattern between two expressions. By identifying this change (multiplication or division) you can save plenty of time on systems of equations as well as solve tricky math problems which ask for the value of an expression. Sometimes you can't solve for the individual variables, so this technique can be used in many situations on the SAT.

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