ineedmathhelp999
ineedmathhelp999 ineedmathhelp999
  • 02-12-2020
  • Mathematics
contestada

Find the values of a and b​ please I will mark brainliest. (make sure to show your work)​

Find the values of a and b please I will mark brainliest make sure to show your work class=

Respuesta :

norsch24
norsch24 norsch24
  • 02-12-2020

Answer:

a = 29

b = 20

Step-by-step explanation:

2a - 1 = 57

    + 1     + 1

2a = 58

/ 2    / 2

a = 29

2a - 1 + 7b - 17 = 180

2 (29) - 1 + 7b - 17 = 180

58 - 1 + 7b - 17 = 180

57 + 7b - 17 = 180

7b + 40 = 180

      - 40     - 40

7b = 140

/ 7      / 7

b = 20

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