1. State the problem: Evaluate $2c + 3d$ when $c = 3$ and $d = 6$.
2. Substitute the given values into the expression: $2c + 3d = 2\cdot 3 + 3\cdot 6$.
3. Compute each product: $2\cdot 3 = 6$.
4. Compute the other product: $3\cdot 6 = 18$.
5. Add the results: $6 + 18 = 24$.
6. Final answer: $2c + 3d = 24$.
Evaluate Expression
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