Question

Solve this system of equations using the addition method x-y=6 and -3y=x+22

Answer 1

First of all @allmightystew : A Warm Welcome to 'Open Study'. Please Read CoC (compulsory to read by all "Open Study" users) : http://openstudy.com/code-of-conduct

Answer 2

x = y + 6 and
x =-3y - 22
x = x
y + 6 = -3y -22
4y = -22 - 6
4y = -28
y = -7
x=-7 + 6 = -1
I don't believe this method is what they wanted. (But it works and is the simplest)

Answer 3

thank you

Answer 4

Here is the addition method.
x - y = 6 now we will add the 2nd equation to the first equation
-x-3y = 22 adding we get
------------
-4y = 28
y = -7 now substitute the -7 value for y in the first equation getting
x - (-7) = 6
x + 7 = 6
x = 6 - 7
x = -1

Same answers as the first go around.

Answer 5

Did you follow with understanding @allmightystew ?

Answer 6

yup thank you i needed a refresh on this and this helped alot :)

Answer 7

You're welcome and come back any time.