Substitute Value of j: We are given that j=7. The expression we need to evaluate is 2j. To find the value of 2j, we will substitute the value of j into the expression.Substitute 7 for j in 2j to get 2×7.
Perform Multiplication: Now we need to perform the multiplication to simplify the expression 2×7.Calculate 2×7 to get 14.
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