faithmenard259 faithmenard259
  • 01-04-2019
  • Mathematics
contestada

One number is 5 less than a second number.twice the second number is 4 less than 4 times the first.find the two numbers

Respuesta :

Tigerlover90 Tigerlover90
  • 01-04-2019

Answer:

9 and 14

Step-by-step explanation:

One number is 5 less than a second number.

a = b - 5

:

Twice the second number is 8 less than 4 times the first.  

2b = 4a - 8

replace a with (b-5)

2b = 4(b-5) - 8

 

2b = 4b - 20 - 8

2b - 4b = -28

-2b = -28

b = 14

then

a = 9

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