ineedmathhelp999 ineedmathhelp999

02-12-2020
Mathematics

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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

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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