Respuesta :

Answer:

-15

Step-by-step explanation:

a = 3 and b = -6.

- 3a + b

Substitute for a and b

adding negatives is subtracting

-3(3) - 6

Multiply

-9 - 6

add

-15

abithemathnerd
-3a + b
-3(3) + -6
-9 + -6
-15

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