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Math Riddles for Class 8: Check out Algebraic Expressions Class 8 Puzzles for Preparing Important Topics for Class 8 Mathematics. Learn the tricks and solutions for algebraic problems. Math Riddles: ...

We can find the value of an expression when given the values of \(x\), \(y\), etc. To find the value of an expression, we need to substitute the given values for \(x\) and \(y\) into \(3x + 5y\).