LaceyBunnyHop
LaceyBunnyHop LaceyBunnyHop
  • 04-02-2017
  • Mathematics
contestada

2. Solve the following system of equations using substitution.
2x+2y=38
Y=x+3

A.(8,11)
B.(4,7)
C.(35/4, 47/4)
D.(-4,-7)

Respuesta :

pinkmermaid pinkmermaid
  • 04-02-2017
First, make sure you convert both equations into standard form. Your two equations would be 2x+2y=38 and -x+y=3. Then multiply the bottom by 2. So your new equations would be 2x+2y=38 and -2x+2y=6. The x would cancel out and you would continue solving for y. y would equal 11 and then you would plug it back into an original equation. When you plug and solve for x, you would get x=8. So your answer would be (8,11)
Answer Link

Otras preguntas

What is the supreme law of the land?
HOW WOULD YOU BE ABLE TO IDENTIFY streptococci THROUGH A MICROSCOPE
How old do citizens have to be to vote for President?
Which compound is classified as a hydrocarbon? (1) butanal (3) 2-butanol (2) butyne (4) 2-butanone
Name one right only for United States citizens.
What are two Cabinet-level positions?
What are the two major political parties in the United States?
What would be the cost to each person in the United States to build a Death Star if it's cost would be 9*10^14 dollars? Express your answer to one significant f
What is the political party of the President now?
Which energy conversion must occur in an operating electrolytic cell? (1) electrical energy to chemical energy (2) electrical energy to nuclear energy (3) chemi