xbox360isaac
xbox360isaac
09-11-2020
Mathematics
contestada
Help with this substitution
Respuesta :
lilstefy
lilstefy
09-11-2020
Since x = 3y + 15, plug that into the other equation.
5x + 2y = 7
5(3y + 15) + 2y = 7
15y + 75 + 2y = 7
17y = 7-75
17y = -68
y = -4
I hope this helps. (x = 3 and y = -4)
Answer Link
VER TODAS LAS RESPUESTAS ( 82+ )
Otras preguntas
Does Pisces work better with Cancer or Sagittarius ?
what are the coman factors for 28 and 40
HELP ME PLZ!!! 15 points 2 man and 2 woman want to cross the river, the boat will only hold 1 man and 2 woman. How many times does the boat cross the river? Fin
Could someone help me with some history?
what is the common ratio of the geometric sequance below? 18,-6,2,-2/3 A.-1/3 B.3 C.-3 D.1/3
If g=5 and k=1, evaluate 9+gk 1.13 2.14 3.15 4.16
What part of the nervous system controls your internal organs? the autonomic nervous system the somatic nervous system
Where do we go when we die?
छात्र के रूप में आप देश की सेवा किस प्रकार करना चाहेगी
The cell theory teaches that _____.
