Problem

Evaluate the expression 2x + 4
when x = 3
Procedure

Replace the given value of x in the expression.

 2x + 4 = 2(3) + 4

Complete the operation.

 2(3) + 4 = 6 + 4
6 + 4 = 10
Solution

2x + 4 = 10
when x = 3

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