Question

HELP PLEASE

Answer 1

Solve each system by the addition method.

x - 2y = -12
x + 6y = 20

Put your answer in ordered pair (x, y) form.

Answer 2

with what?

Answer 3

I can help using substitution method but not sure about addition method

Answer 4

Any help will do

Answer 5

are you able to solve the 1st line for x?

Answer 6

hint, add 2y to both sides to isolate x

Answer 7

I'm sorry I'm still confused

Answer 8

x - 2y = -12
+2y +2y
-----------------
x = -12 +2y

Answer 9

replace this new value (-12 +2y) in place of x in the second equation and solve for y

Answer 10

(-12 +2y) + 6y = 20
now you have 1 variable

Answer 11

Where did you get the 6y

Answer 12

-12 +2y +6y = 20
combine like terms (2y and 6y)
can you continue it?

Answer 13

from your second equation x +6y =20
put -12 +2y in place of x

Answer 14

The addition method is just adding the two equations together (or rather, subtracting them in this case). Just subtract the coefficients like you would individually:

x + 6y = 20
- x - 2y = -12
---------------
(1-1)x + (6- -2)y = 20 - -12
0x + 8y = 32
y = 4

Then you can plop that value in and solve for x :)