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  • 26-05-2020
  • Mathematics
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NEED HELP ASAP GIVING BRAINLIST!!!!!!!

NEED HELP ASAP GIVING BRAINLIST class=

Respuesta :

TheLazyNobita
TheLazyNobita TheLazyNobita
  • 26-05-2020

(a) 8(4x+3) > -1 + 7x

32x + 24 > -1 + 7x

32x - 7x > -1 -25

25x >-26

x > -26/25

(b) 167 < 6 + 7(2 - 7r)

167 < 6 + 14 - 49r

49r < 6 + 14 - 167

49r < - 147

r < - 3

(c) 8x + 40 > -8 ( 1 - 7x)

8x + 40 > -8 + 56x

56x - 8x < 48

48x < 48

x < 1

(d)5( 6 + 3r) + 7 > 127

30 + 15r + 7 > 127

15r > 127 - 37

15r > 90

r > 6

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