Seudónimo Seudónimo
  • 10-01-2022
  • Mathematics
contestada

1. The sum of two numbers is 4. Two times one of the numbers plus seven is equal to
the other number. What are the two numbers? [3 marks TNK: 5 marks APP: 3 marks
COM]
SHOW WORK PLEASE !!

Respuesta :

Yang100
Yang100 Yang100
  • 10-01-2022

Answer:

x=-1, y=5. The two numbers are -1 and 5.

Step-by-step explanation:

x+y=4

2x+7=y

-------------

x+(2x+7)=4

3x+7=4

3x=4-7

3x=-3

x=-3/3

x=-1

----------------

-1+y=4

y=4-(-1)=4+1=5

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