whats 6y+9y

if y=5

What is 15 times 5 ?

80

The answer should be 70

To find the value of the expression 6y + 9y when y = 5, we need to substitute the value of y into the expression.

Step 1: Replace y with 5 in the expression 6y + 9y.

6(5) + 9(5)

Step 2: Simplify the expression using the order of operations, which states that we should perform multiplication before addition.

30 + 45

Step 3: Add the two numbers.

30 + 45 = 75

Therefore, 6y + 9y, when y = 5, equals 75.