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you substitute x for 4 and so you multiply 9 x 4 which will give you 36 and then you have to add four times y so you substitute y for -3 and you add 36 - 12 which will give you 24

Respuesta :

JohnPositivity
1. You start with the expression 9x + 4y.
2. Substitute x with 4, so it becomes 9 * 4 + 4y.
3. Simplify 9 * 4 to get 36.
4. You have 36 + 4y now.
5. Substitute y with -3, giving you 36 + 4(-3).
6. Multiply 4 by -3 to get -12.
7. Now, you have 36 - 12.
8. Finally, subtract 12 from 36 to get 24.

So, your final answer is indeed 24.

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