Question

Replace 5 for x and 1 for y in the expression 3(x + 4y):

Answer 1

To substitute 5 for x and 1 for y in the expression 3(x + 4y), replace x with 5 and y with 1 to get 3(5 + 4*1), which simplifies to 3(9), resulting in a final answer of 27.

Step-by-step explanation:

To replace 5 for x and 1 for y in the expression 3(x + 4y), you would substitute x with 5 and y with 1 and then simplify the expression accordingly. Here's how it's done step by step:

1. Start with the original expression: 3(x + 4y).
2. Replace x with 5 and y with 1: 3(5 + 4(1)).
3. Carry out the multiplication inside the parentheses: 3(5 + 4).
4. Add the numbers inside the parentheses: 3(9).
5. Finally, multiply 3 by 9 to get the answer: 27.