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 ( 65+ )
Otras preguntas
What movement followed the brown v. Board of education decisions A.Equality B.suffrage C.emancipation D.desegregation
To the extent that entrepreneurs can predict the points of takeoff (optimism) and slowdown (pessimism) in the ____, they can better manage demand.
what lines would you use to solve -3x-2=2x+8?
If a ribbon that is 30.1 inches long is cut into equal pieces that are 1.75 inches long, how many pieces of ribbon can be created?
why does wiesel refer to indifference as tempting
Some molecular compounds, such as HCl, ionize completely in solution. Some molecular compounds such as HC2H3O2 do not ionize completely when they dissolve in w
In your personal life what are the things you consider real true unchanging
I do not believe that any of us would exchange places with any other people or any other generation. fact or opinion?
Enzymes are added to a chemical reaction to lower the activation energy. What is an enzyme classified as? A) a catalyst B) an inhibitor C) an accelerator D)
The set of points (1, 3), (3, 5), (4, 7) is collinear. ture or false
