If a = 7 and b = 4, what does 2a + 3b equal?

To find the value of the expression (2a + 3b) when (a = 7) and (b = 4), you first substitute the values of (a) and (b) into the expression.

1. Calculate (2a):

(2a = 2 \times 7 = 14)

2. Calculate (3b):

(3b = 3 \times 4 = 12)

3. Add the results together:

(2a + 3b = 14 + 12 = 26)

Therefore, the value of (2a + 3b) is 26. This corresponds to the correct answer, which reflects the accurate calculation of the expression by substituting the values for (a) and (b) and combining the results.