229k views
3 votes
Evaluate the expression when a= 4, b= - 2, and c= 7 - -> 5a - 9 (b - c)

1 Answer

13 votes

Answer:


65

Explanation:

Given the following question:


5a-9(b-c)
a = 4
b = 2
c = 7

In order to find the answer, we need to substitute the variables with the numbers given, and then solve using PEMDAS.


5*4-9*(2-7)

2-7=-5

5*4-9*-5

5*4=20

20-9*-5

9*-5=-45

20--45

20+45=65

=65

Hope this helps.

User Mhitza
by
7.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories