Question

Put the steps in order that are used to solve the following systems of equations by substitution.
-72-24= -13
x-2y = 11

-16y = 64

= x-2y = 11 --> x = 2y + 11

-14y - 77 - 2y = - 13

-7(2y + 11) - 2y = - 13

(3, -4)

-16у - 77 = -13

x + 8 = 11

y = -4

x = 3

x - 2 (-4) = 11

Put the steps above in the right order, only use the numbers I listed above. Don’t add any words just list the numbers in the right order to solve it.

Answer 1

1. -72 - 24 = -13
2. x - 2y = 11
3. x = 2y + 11
4. -16y = 64
5. y = -4
6. x = 3
7. x - 2(-4) = 11
8. -14y - 77 - 2y = -13
9. -7(2y + 11) - 2y = -13
10. -16y - 77 = -13
11. x + 8 = 11
12. (3, -4)

Answer 2

There is only 10 steps. Only use the numbers I listed.

Answer 3

1. -72 - 24 = -13
2. x - 2y = 11
3. x = 2y + 11
4. -16y = 64
5. y = -4
6. x = 3
7. x - 2 (-4) = 11
8. -14y - 77 - 2y = - 13
9. -7(2y + 11) - 2y = - 13
10. -16y - 77 = -13

Answer 4

Those aren’t the numbers I listed

Answer 5

Apologies for the confusion. Here are the steps in the order that you listed:

1. -72 - 24 = -13
2. x - 2y = 11
3. -16y = 64
4. x = 2y + 11
5. -14y - 77 - 2y = -13
6. -7(2y + 11) - 2y = -13
7. -16y - 77 = -13
8. x + 8 = 11
9. y = -4
10. x = 3

Answer 6

Step one is not in the numbers I listed

Answer 7

Apologies for the oversight. Here are the steps in the order of the numbers you listed:

1. x - 2y = 11
2. -16y = 64
3. x = 2y + 11
4. -14y - 77 - 2y = -13
5. -7(2y + 11) - 2y = -13
6. -16y - 77 = -13
7. x + 8 = 11
8. x - 2(-4) = 11
9. y = -4
10. x = 3

Answer 8

Step 1-4 is wrong

Answer 9

Apologies for the mistake. Here are the corrected steps in the order of the numbers you listed:

1. -16y = 64
2. y = -4
3. x - 2y = 11
4. x = 2y + 11
5. x - 2(-4) = 11
6. x = 3
7. -14y - 77 - 2y = -13
8. -7(2y + 11) - 2y = -13
9. -16y - 77 = -13
10. -72 - 24 = -13