Mqddie
contestada

PLEASE HELP
Annie wrote the following steps to solve a pair of equations:


Step 1: y = −x − 5
y = 2x + 2

Step 2: 2y = −2x −10
y = 2x + 2


Which of the following shows the correct next step to solve the equations by eliminating x?
3y = –5
3y = –8
3y = –12
3y = –20

Respuesta :

Option B: [tex]3 y=-8[/tex] is the correct next step to solve the equations by eliminating x

Explanation:

Given that the steps to solve the pair of equations.

Step 1: [tex]y=-x-5[/tex] and [tex]y=2 x+2[/tex]

Step 2: [tex]2 y=-2 x-10[/tex] and [tex]y=2 x+2[/tex]

We need to determine the next step to solve the equations by eliminating x.

The solution can be determined by adding the two equations in step 2.

Thus, we have,

[tex]2 y+y=-2 x-10+(2x+2)[/tex]

Simplifying the terms, we have,

[tex]2 y+y=-2 x-10+2x+2[/tex]

Adding the like terms, we get,

[tex]3 y=-8[/tex]

Thus, [tex]3 y=-8[/tex] is the correct next step to solve the equations by eliminating x.

Hence, Option B is the correct answer.