QueenD1010 QueenD1010

15-08-2017
Mathematics

contestada

If 5(3x-7)=20, then what is 6x-8? and what are the steps to get to it?

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Banabanana Banabanana

16-08-2017

5(3x-7)=20 solve for x
3x - 7 = 20/5
3x - 7 = 4
3x = 4 + 7
3x = 11
x = 11/3

If x = 11/3, then 6x-8 = 6 * 11/3 - 8 = 22 - 8 = 14 ← answer

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ayarakan1 ayarakan1

16-08-2017

5(3x-7)=20
15x-35 = 20
15x = 55
x = 55/15

now but 55/15 in ( 6x-8 )

6(55/15) -8 =
22-8 = 14

Answer Link

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