How do you solve the system y=x-1 and x+y =3?
1 Answer
Mar 3, 2018
Since only one of the variables is defined, we can use the substitution method so first, substitute for y
Then, combine like terms and solve for x
Now that we know what x is, we can substitute for x in the other equation to find y
Now that we know what both x and y are, we can substitute for the variables
We can now conclude the answer
