emtodd610
emtodd610
26-10-2017
Mathematics
contestada
3x-5y=7, x=2y+4 solve by system of equation
Respuesta :
choixongdong
choixongdong
26-10-2017
3x-5y=7, x=2y+4
substitute
x=2y+4 into 3x-5y=7
3x-5y=7
3(2y+4)-5y=7
6y + 12 - 5y = 7
y = -5
x=2y+4
x = 2(-5) + 4
x = -10 + 4
x = -6
answer
x = -6 and y = -5
Answer Link
VER TODAS LAS RESPUESTAS ( 71+ )
Otras preguntas
Describe tu habitación/dormitorio.
Describe tu habitación/dormitorio.
Où vit-on le mieux et pourquoi : en ville ou à la campagne?
The Inca Empire was located at the western end of which continent? Can someone explain?
Can someone complete the chemical reactions, or write which one do not occur, and provide tehir types?*c2h4+h2o*c3h8 + hcl*c2h2+br2*c4h10+br2*c3h6+br2
The Inca Empire was located at the western end of which continent? Can someone explain?
Où vit-on le mieux et pourquoi : en ville ou à la campagne?
Describe tu habitación/dormitorio.
Can someone complete the chemical reactions, or write which one do not occur, and provide tehir types?*c2h4+h2o*c3h8 + hcl*c2h2+br2*c4h10+br2*c3h6+br2
Who was Adam Smith? Anybody?
