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.