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Mathematics · L2 · Evaluating an Expression by Substitution

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The steps to find the value of an algebraic expression once you know what number the variable stands for.

by @openstemUpdated Mathematics
🔢 Expression: 2x + 7Value given: x = 4🔁 Substitute: replace x with 4Write: 2(4) + 7Follow order of operations: 8 + 7✅ Result: 15

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