contestada


For the following system, use the second equation to make a substitution for x in the first equation.

3x + 2y = 7
x - y + 3 = 0

What is the resulting equation?

3x - y - 3 + 2y = 7

3(y - 3) + 2y = 7

3y - 3 + 2y = 7

Respuesta :

groseinger

Answer:

3(y - 3) + 2y = 7

Step-by-step explanation:

To get your answer, first change the second equation so that it will equal x. Add y to both sides and then subtract 3 from both sides, and you will get

x = y - 3. Next, substitute that equation in for x in the first equation. You will get 3(y - 3) + 2y = 7.

aksnkj

After substitution from equation 2, the first equation will be [tex]3(y-3) + 2y = 7[/tex]. Option B is correct.

Given information:

The given system of equations is,

[tex]3x + 2y = 7\\x - y + 3 = 0[/tex]

Use the second equation to make a substitution for x in the first equation,

[tex]3x + 2y = 7\\x - y + 3 = 0\\x=y-3\\3x + 2y = 7\\3(y-3) + 2y = 7[/tex]

Using the required substitution, the equation will be [tex]3(y-3) + 2y = 7[/tex].

Therefore, after substitution from equation 2, the first equation will be [tex]3(y-3) + 2y = 7[/tex]. Option B is correct.

For more details, refer to the link:

https://brainly.com/question/22340165

Otras preguntas