Question

Evaluate the expression for the given value of the variable(s).

5a+5b;a=-6b=-5




A. 19 B. 17 C. -11 D. 21

Answer 1

The answer to what you have there is -55 using order of operations. 5 times -6 is -30. 5 times -5 is -25. add. You get -55.

Answer 2

The given expression is 5a+5b The given values of a and b are a=-6 ,b=-5

Substituting the values of a and b in the expression we have :

5a+5b= 5(-6)+5(-5)

= -30 -25 ( when a positive and a negative number is multiplied the result is a negative number)

-30-25=-55 (same signs are added)

The answer to the expression 5a+5b when a=-6 anf b=5 is -55.

[The given options are not correct.]