Apply Distributive Property: Apply the distributive property to expand the expression.We need to multiply each term inside the parentheses by 2.2(3+7d)=2×3+2×7d
Perform Multiplication: Perform the multiplication.Now we multiply the numbers.2×3=6 and 2×7d=14dSo, 2(3+7d)=6+14d
Write Final Expression: Write the final simplified expression.The expression is now simplified to 6+14d.