21-01-2021
Mathematics

contestada

−3(2.5−k)+0.5(7+8k).

Respuesta :

tisaeb14 tisaeb14

21-01-2021

Answer:

7k-4

Step-by-step explanation:

(-3)(2.5)+(-3)(-k)+(0.5)(7)+(0.5)(8k)

-7.5+3k+3.5+4k

Then you combine like terms

-7.5k+3k+3.5+4k

(3k+4k)+(-7.5+3.5)

7k+-4

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