Seudónimo Seudónimo

29-09-2020
Mathematics

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solve all please and show ALLLL steps

8b-7 = 7b - 2

-12+5k=15-4k

Respuesta :

29-09-2020

Answer:

Step-by-step explanation:

8b - 7 = 7b - 2

Bringing like terms on one side

8b - 7b = - 2 + 7

B = 5

-12 + 5k = 15 - 4k

Bringing like terms on one side

5k + 4k = 15 + 12

9k = 27

k = 27/9 = 3

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