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

A rectangle has a length that is 5 inches greater than its width, and its area is 104 square inches. The equation (x + 5)x = 104 represents the situation, where
determine if 9|x|+y=4 is a function
It is easy to create good photographs of mountains because you can always tell how big they are. True False
What is a potential benefit of fuel cell cars?
Which of the following is true ?
5 POINTS!! please help!! show work too! thank you !​
¿Hicistie tu malatya Ayer? A. Sí , hice mi maletas ayee B. Sí, hizo mi maleta ayer C. Sí , hago mi maleta ayee D. Sí, have mi maleta ayer
Choose the kind(s) of symmetry: point, line, plane, or none. point line plane none
Need help solving for X, nothing else. Pls
Find an equivalent system of equations for the following system: 3x + 3y = 0 −4x + 4y = −8 3x + 3y = 0 7x − y = 8 3x + 3y = 0 −7x − y = 8 3x + 3y = 0 −7x + 7