write an algebraic expression that models the given word phrase.

6 times the sum of a and b

6(a + b)

The algebraic expression that models the word phrase "6 times the sum of a and b" is 6(a + b).

To write an algebraic expression that models the phrase "6 times the sum of a and b," we can follow these steps:

Step 1: Identify the variables involved in the problem. In this case, we have two variables - a and b.

Step 2: Determine the operation that relates the variables. The word "sum" indicates that we need to add a and b together.

Step 3: Apply the operation and include the coefficient. The word "times" implies multiplication, so we multiply the sum of a and b by 6.

Putting it all together, the algebraic expression that models the given phrase is: 6(a + b)